I'm wondering how each payout method (PPS, DGM, PPLNS, Proportional, etc) influences the cost of executing a block withholding attack.
Does it matter how the payout method places variance between pool and miners? With DGM this is a setting that can be adjusted by the pool operator. With other payout methods it is inherent to the system.
Does a block finder's bonus influence the cost of an attack? By that I mean part of the block income being reserved for the miner who created it, before the rest is distributed according to the pool's chosen payout method.
Are other factors important?
Which systems would be expensive to attack, and which would be cheapest?