Wildshape variant ranger:
The wildshape ranger trades his combat style feats for fast movement (as a barbarian) and wildshape (as a druid, small and medium animals only). This is generally considered a step up from the normal ranger.
Cons: The wildshape ranger is pretty much a liability before level 5, assuming str and dex were dumped. He's limited to small and medium animals when wildshaping, limiting combat option when compared to the druid. Also since you aren't going to get any more wildshape forms after level 5, it severely limits the incentive to keep taking ranger levels. The wildshape ranger still has the sucky animal companion.
Pros: The wildshape ranger is able to dump his str and dex scores, getting rid of the MAD that rangers normally have. Wildshaping creates much more flexibility in combat: pouncing as a leopard, tripping as a riding dog, grappling as a black bear, constrictor snake, or crocodile, weapons and armor as a baboon, and more. He still gets the normal ranger goodies like 2 bonus feats, spellcasting, 6 skill points/level, and evasion. The wildshape ranger can qualify for PrCs like Master of Many Forms and Warshaper.