There really was no place like home this year for the Montreal Alouettes.

Montreal was the CFL's top team this season, posting a league-best 15-3 record that included a perfect 9-0 mark at Molson Stadium. But the Alouettes won't be outdoors Sunday when they face the B.C. Lions in the East Division final (TSN, 1 p.m., ET). That game will be played at Olympic Stadium, a larger domed facility that's expected to attract more than 45,000 screaming Als fans.

The Saskatchewan Roughriders will host their first West Division final since 1976 on Sunday when they take on the defending Grey Cup-champion Calgary Stampeders at Mosaic Stadium (TSN, 4 p.m. ET). The two conference winners square off in the Grey Cup on Nov. 29 at McMahon Stadium.

Montreal was dominant at home, outscoring its opponents by more than a 2-to-1 margin (312 points for, 149 against). And the Alouettes sported a 6-2 record against its West Division rivals.

Despite finishing fourth in the West Division standings with an 8-10 record, the Lions were 4-5 on the road in 2009 and 4-4 versus East Division teams. B.C. and Montreal split their season series 1-1, with each team winning at home.

But their last meeting was Sept. 13 when Montreal took a 28-24 victory. The week before, the Lions earned a 19-12 home win over the Als.

Here's a more concentrated look at the two division finals.

East Final

B.C. versus Montreal

At Montreal, the Alouettes defence will get its first look of the season at Lions starter Casey Printers. The CFL's outstanding player in 2004 had been unemployed since being released by Hamilton in February before returning to B.C. last month.

On Sunday against Hamilton, Printers was 24-of-35 passing for 360 yards and a TD in leading the Lions to a thrilling 34-27 overtime win in the East Division semifinal. He also ran for a TD and was generally effective in using his feet to escape the Ticats' rush and buy his receivers time to get open downfield.

But B.C.'s offence isn't all about Printers. Rooking running back Martell Mallett finished fourth in CFL rushing with 1,240 yards while veteran slotback Geroy Simon (79 catches, 1,239 yards, six TDs) was the Lions' go-to receiver this season.

Simon was definitely a factor in Sunday's win, registering five catches for 111 yards. However, it was Emmanuel Arceneaux who was the Lions' leading receiver with six catches for 120 yards.

Montreal counters with a stout defence that was clearly the CFL's best this year, leading in 21 of the league's 25 defensive categories, including fewest points allowed (18 per game), passing yards (245.7 per game), yards rushing (75.1 per game) and combined yards (296 per game). The Alouettes also know what to do when they get their hands on the football, returning 24 interceptions (second-most in the CFL) a league-high 455 yards.

The Alouettes' offence is no slouch, either. With Anthony Calvillo, the East Division's nominee for most outstanding player, leading the way, Montreal finished first in points scored (33.3 per game), total yards (390.3 per game) and passing yards (288.4 per game) and second overall in rushing yards (119.9 per game).

B.C. did a great job pressuring the quarterback this year with a CFL-high 45 sacks and added five more in the win over Hamilton. End Ricky Foley led the way with 12 sacks while fellow end Brent Johnson had three against the Ticats.

Montreal did allow 35 sacks this year, but that's a solid effort up front considering the club threw 633 passes.

Printers makes this game interesting and will present Montreal with a solid challenge. But the Alouettes' defence has the quickness and versatility to capably handle the Lions.

Prediction: Montreal.

West final

Calgary versus Saskatchewan

At Regina, the Roughriders will host their first West Division final since 1976. And they'll face a Calgary squad that they've enjoyed success against this year.

The Riders won the season series 2-0-1, including a 30-14 home win in the regular-season finale for both teams that clinched them top spot in the West. Once again, the Stampeders will have to face a hostile environment as Sunday's contest is a sellout with over 30,000 rabid Saskatchewan football fans taking it in.

Both teams have motivation to win. Saskatchewan is chasing its second Grey Cup title in three years while Calgary is the defending CFL champion and attempting to not only become the first team to register consecutive titles since the '96-'97 Toronto Argonauts, but the first franchise to win the Grey Cup at home since the '94 Lions.

Calgary advanced to the final with a 24-21 home victory over Edmonton in the West semifinal. Stampeders quarterback Henry Burris was 19-of-32 passing for 264 yards and two TDs after finishing second overall in CFL passing with 4,831 yards.

But the Stampeders were more than just a passing team, leading the CFL in rushing (129.7 yards per game) thanks in large part to tailback Joffrey Reynolds, the West Division's nominee for the league's outstanding player award. He finished atop the rushing race with 1,504 yards.

The Riders were vulnerable against the run this year, allowing 123.8 yards per game. The their defence did feature five West Division all-star, including ends John Chick and Stevie Baggs, who both had 11 sacks apiece. Chick was also nominated as the conference representative for the league's outstanding defensive player award.

Another factor for Saskatchewan will be the return of veteran defensive back Eddie Davis, who missed the final two regular-season game to injury.

There's a lot to like about the Riders in this game, most notably they're at home and facing a team they've had a lot of success against. Calgary is the defending league champion and knows what it takes to win in big games, but the expectation is Saskatchewan will be jacked playing in front of its wild fans.

Prediction: Saskatchewan.