The pools mentioned are all shitpools. If you take steep emission curve into consideration, the pool that definitely pays the most is the pool with the highest hash rate - monero.crypto-pool.fr
Nonsense. The best pool is the one with the lowest latency to your miners, lowest pool orphan rate, best reliability, reasonably-frequent but not too-frequent payouts (no more than once per day; less is probably better), and lowest fees. That won't be the same for everyone.