I am considering Whirlwind Attack for my ftr/rog. I plan on using it in conjunction with Improved Feint. I am wondering how do Cleave/Great Cleave compare to WA? What are the cooldowns on all of them? What kind of arc do cleave and GC have, i.e ~how many targets can you expect to hit? Is cleave good enough, or is GC pretty much a given if going that route?

Right now the only prereq I have is Dodge, so I will need to take 3 feats for either WA or cleave/GC. I won't be using PA much, so it really won't be a factor as far as which feat chain is a better.