06 style mirrors for everyone

[Hummertech]

As far as what is better, they say they are more stable, don't become loose at the pivot.
And the fold motor is a better design. If you're out of warranty I supposse you could ask them to try to find the old part number and purchase just one. Or you could purchase both mirrors if you wanted. The better bet would be to try to get your dealer to cover it since it is a known problem.