well it always looked as though OP is more polished and compact than comodo to me. CFW UI is like a messy room while OP is looks like a tidy one plus it has Web Control feature which can be handy since it applies to all applications and it also has an Adblock feature.
it also comes with a file®istry live activity monitor which is perfect when analyzing an infected machine.
but all that said at the end of it all nothing can beat that sweat sight of the " 0$ " sign when you check out comodo