Deepbit (proportional) is hoppable. Slush's pool is somewhat hoppable but is a good pool other than that.
Less fee doesn't necessarily mean the best, don't get tempted by 0% fee.
You're right, but some of the best pools happen to also be 0% fee, e.g. EMC, Ozcoin, maxbtc, Bitminter. BTCGuild is good if you're after PPS with a fee.
the total hashrate it already has, i mean it's safe to say that deepbit miners will not have a hard time finding a block at all
A larger pool will have less variance, but just as much long-term total payout.