Aire is my favorite. But Sotar or Maravia are easily the nicest.
There are lots of options, Maravia, Vanguard (heavy but still good boats) Aire, Sotar etc. and they all have different series that vary in price and longevity/quality.
Aire however has an internal blader system that can really save your butt... I put a 4 foot gash in oue of our Cat tubes and we just stitched her up and went back to the beer!!! Stay away from their Livery series as these are just not up to snuff, ANY of their other boats are great and if you want hauling capacity and a low draw get a Cataraft. They can be set up to carry a few people and ALOT of camping gear and are more manuverable than ANY raft, they just have some handeling quirks depending on where you out the oar basket. Hint: Don't gfet a front oar... it's a crappy position to row from and the boat is squirly as all get out. Another plus to the cat, they ride real high out of the water so shallows are not as much of a problem. IE: you won't beach yourself if you miss-read a gravel bar 
What type of paddling are you doing (rapid class? flat water etc?) that will make this descision a little easier.
Cheers
Dave
David B King: EMT-I / WMI - Wilderness EMT, FF1
Neck Healing...let the FUN BEGIN AGAIN!!!!
-89 Toyota 4Runner dubbed "Project 4Rescue"
Stock 22RE, 5spd, 33x10.50 BFG At's, Marlin rear Bumper, OME Dakar / BJ Spacer lift + OME Shocks all around (and the SS),4.88's coming soon...
2002 Norco 4x4 Romic T2 Marzo 55 -Soon to be replaced by a Trans. Bottlerocket or maybe a Spec. SX trail....