BlizKick had the biggest impact (mapping KS to Fast RAM), some of the other patches do help a bit too. FBlit and FText do help, without them I was only getting 51 mips. (I know not the best way to test, but it is noticeable)
BlazeWCP only helps in some games, like ScummVM. Cyberpatcher helped in apps that use a FPU. (like Mand2000) without it the program would crawl.