similarities and differences on search engines

The search engines i used were dogpile, icerocket, alltheweb, kooltorch, and webbrain. I found webbrain was the best one because of the way it worked and how detailed it was. All the others were similar to each other. The ones I found most usefull was webbrain and icerocket. I think Kooltorch was a bad one because it was a little to compicated for people to use. The search engines i would recomend are dogpile, icerocket, webbrain, and allthewebb.