If you like the strawberry/banana type stuff you should try Wells Banana Bread Beer, tastes just like it sounds and it's delicious. Funny I just saw that Goose Island at the store the other day and thought about picking one up, guess I'll have to now! I can't compare it since I haven't tried it, but my favorite is also a bourbon barrel aged ale, Founders - Backwoods Bastard. They only release it once a year in the fall, but I swear you don't know if you're drinking a beer or a bourbon, it's so frickin' delicious. It hits hard though, I don't drink more than one at a time. I highly recommend it. I also was just gifted a similar one made in the same style but haven't tried it yet, by Founders as well but it's aged in 3rd generation bourbon barrels, used once for bourbon originally, used again to age maple syrup, and the third to age this beer. I'm pretty excited to try it, just waiting for a good time to sit down and enjoy it.
And, since you asked the impossible question and said pick one...
Favorite IPA - Sweetwater IPA (Columbus hops used in it, smells like a bouquet of roses!)
Favorite Stout - Left Hand Milk Stout (Nitro, like drinking chocolate milk, it's awesome)
Favorite Porter - Breckenridge Vanilla Porter
Favorite Pale - RJ Rockers American Pale
Favorite Amber - Shiner Bock
Favorite Hefe - Widmer Hefeweisen (a little dryer than most)
Favorite Session - Red Stripe
Favorite Sour - Anderson Valley Blood Orange Gose
Favorite Red - Kilkenny Irish Red
Honorable mentions: Space Dust IPA, Sweetwater 420, any legit German Marzen, Thomas Creek Red, Magic Hat #9, Green Man IPA, Lagunitas Lil Sumpin', Rogue Dead Guy...eh I'm just going to stop, I'll be here all day if I don't, lol :)