You could get some twang from it being old. That said, if you want to brew with it anyway I would choose something dark so any off flavors would be masked some. Those flavors would shine right through a really light beer like a Pilsner. Maybe a porter or stout and add the necessary dark steeping grains to darken it.
Definitely get some new yeast, no sense in using old stuff when its relatively cheap.
Primary #1: Empty #2: Black IPA
Secondary #1: Blackberry Rhubarb wine #2: RIS #3: Cab MerMarqeNac Wine
Kegged: Pumpkin Ale, Pre-Prohibition Lager
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