I just bought this one from home depot:
Honda 21 in. 3-in-1 Variable Speed Self-Propelled Gas Mower with Auto Choke-HRR216K9VKA - The Home Depot
I was between this and the Toro Recycler. I went with the Honda, primarily because its a Honda. I didnt care that it had rear wheel drive or twin cutting blades when i bought it. I just wanted a machine that would last a while and do a decent job.
I was even more impressed when I got home and went to use it. The variable speed controls are nice, its like thumb throttles, essentially makes the machine a personal pace mower. the twin cutting blades did such a good job cutting the grass that the clippings are so fine you probably will not bag the lawn as often. (one of the reviews i read also said that the twin cutting blades chop up the grass so fine that it packs the bag better for less emptying)
They have another model for 100$ more that has the blade stop feature. to me this isnt really worth it as the mower is easy to start and the twin blades keeps the bag emptying down.
I really am impressed with this mower hence my glowing review. ha
The rear wheel drive is a nice addition too. AWD seems unnecessary to me and sounds like another thing that will break.
good luck!