Which one is better and why? Are they both GPU-only or can they be mined with more powerful methods?
Both are great.
POT is going PoS only. So better buy a bag now and stake mine the coin.
CANN is PoW x11 GPU friendly. CANN also has D9 trying hard to get medicine to patients.
Theres so many marijuana niche coins out right now but I'm excited to see if there will be a new ethereum clone in this niche. I'm also excited to see if any marijuana coins will switch to ethereums code base with an automated coin swap. I really like ethereum right now.