When I was a (quite pimply) teen two decades ago, I was confronted with this decision. Not really knowing which to go with, my mom said, "Antiperspirant clogs up your pores so you don't sweat." That night I had a dream I'd put it on, and found myself with a zit in each pit the size of a good Fuji apple. Out of curiosity I crushed my arms down, and puss exploded out, drenching my body.
So, yeah, I pretty much just use deodorant.