ISE - very liquid - often fills between Bid/Ask, sometimes even fills orders buying @ Bid or Selling @ Ask. Fast cancels, cancel/replaces.
BOX - second to ISE - offers penny executions (through IB), just as good as ISE for liquid options - slightly worse for illiquid ones. Fast cancels, cancel/replaces.
CBOE - do not expect any fills between Bid/Ask. Does have the most liquidity of the remaining exchanges though. Moderate speed to cancel, cancel/replace.
PHLX, PSE, AMEX - Never, never send any order there. Very little liquidity. It will NEVER fill between Bid/Ask, sometimes take long time to cancel orders. Slow to cancel/replace orders.