I've heard Hein-Werner are the best. Made in USA by a Taiwanese company. Their Taiwanese line is supposed to be pretty good too.
I have a 3 ton Urrea. It is much bigger than your average 3 ton. The ram looks to be 10 ton rated, the jack is nearly 4 feet long not including the handle. It works great. It was made in Spain, looks to be mostly hand made. It was over $500 though.