I guess you could do both half-arsed but to do one properly you would have to drop or sevely tone down the other
Bodybuilding
Pros: Girls love muscle (here anyway),being strong is great,eat as much as you like,big arms are every guys dream to have
Cons: Gear costs quite a bit,cardiovascularly unfit,restrictive lifestyle,training can sometimes be a pain in the ass
MMA
Pros: Great fun to do,makes you incredibly fit,learning something new every session,healhier lifestyle
Cons: Lose a lot of your muscle,get niggling injuries quite a bit