I will also toss in a vote for the Quest. While I have a Quest (1). It is a tad of a pain to load maps of where I might be headed. It doesn't hold the who US.
The Quest (2) does, so get that if you go Quest.
They also make a really nice Motorcycle mount, it's a $50 buy on flea-bay. I don't know if Garmin has changed packaging or not but they didn't give you software with the Q2 but if you call Garmin they will send it to you so you can plan routes and download them. My father traded in his bigger GPS for the Q2 and loves it.
Yes it is smaller, no doublt but smaller isn't always bad, it's easily portable from bike to car, to rental to what ever.
I've also been looking at the Nuvi as a potential replacement for my Q1 but I'm not sure it's waterproof like the Quest.
I'm a bit tapped out at the moment though :0