Since you've got the fermentation space, I'd go with PaloAlto and make a single 10gal batch (really no extra work, provided you've got a burner that can fuel the boil). Extra kegs are relatively cheap, so you fill two, put one in the kegerator and leave the other to condition even more in the keg. It will only get better!
Atomic Dog Brewery
On Deck: Centennial IPA, Dry Irish Stout
P: Cascade Pale Ale
T: Carbed Crystal Light, Root Beer, Vanilla Cream Soda, Tripel IPA, Apfelwein
e^(pi*i) + 1 = 0