Entirely subjective, my friend. Pick your fave and run with it. You may want to cross-referance that with some of the online seedbanks becaue they often have descriptions that give you an idea of how to care for a given strain. Also do some (advanced)forum searches here on specific strains, particularly in the grow journal forum.
I went with Master Kush for my current grow, mainly because it's good dope and it just so happened that it's relatively simple to care for.