I don't go to either. Like P'Gell there's a local place I go for all that stuff - they do all kinds of hot coffee / lattes / all that + all the different iced coffees. Also I like supporting local places, not to mention their prices are WAY better than Starbucks.
If I had to choose, I'd rather go to Starbucks because they have more variety & I can get everything in decaf. I have friends who love Starbucks, so I go when I'm with them and I always enjoy what I get, I just think it's ridiculously overpriced.