Bitcoin has the largest, but also one of the most concentrated, pool landscapes: a handful of large providers find the majority of all blocks. This is convenient for your payouts - large pools pay very evenly - but too much concentration is unfavourable for the network. Anyone who keeps decentralisation in mind alongside fee and payout model makes a deliberate choice instead of automatically picking the largest provider. The live table above makes the current distribution transparent.
The shares above are based on the blocks actually found over the past seven days - the most honest measure available, because it can be verified on-chain. For Bitcoin, FPPS is the most common payout model: the pool pays a fixed rate for computing power and also distributes a proportional share of transaction fees. The basics of payout models and selection criteria are covered on the overview page Mining Pools.
For miners in Europe, alongside fee and payout model, the proximity of the stratum server matters - low latency reduces the number of rejected shares. Switching pools is possible at any time within minutes: just enter the new stratum address in the miner dashboard, done. Customers who have their devices hosted by Cryptohall24 choose the pool themselves, freely; our team is happy to help with setup on request. What a device earns after the pool fee can be calculated in the Bitcoin Mining Calculator.