pragmatic bonuses are ass. however they seem to keep your balance afloat the longest.
Hacksaw is my favorite because the bonuses actually have real potential to pay big.
No limit is the worst version of prag and hacksaw combined. The base games never keep your balance afloat and big bonuses are super fucking rare. I really don't understand why anyone would play no limit unless you had a bunch of money to burn chasing a potentially massive multi.
from my experience the enhanced RTP slots basically just tend to give you a little more of your money back each spin so instead of bleeding out quickly you bleed out a little slower. And because of that, I notice the bonuses tend to be shittier too.