As TS&M mentioned, AOW is a sampler. Many people recommend waiting to do AOW, but I think it's a good way to learn more about some basic skills as you mentioned, and figure out what you do/don't like. I'm admittedly a very novice diver, but I've hung around a couple advanced classes beyond my own, and I've seen people straight out of OW who did great, and people with quite a bit of experience who I wouldn't want to dive with. Last weekend I actually watched a guy bounce his way along the bottom, silting out the entire class. So I would say you want to have basic buoyancy and comfort with your gear in the water before taking the class, so you are spending more time focusing on the new skills instead of worrying about basic ones.
If you are comfortable with that, based on what you wrote, AOW sounds like something you'd enjoy.
AOW is 5 dives. Deep and Navigation are requirements, but I believe the other 3 are at the discretion of the instructor and can be from one of a dozen or more specialties (I don't have my manual in front of me). Another nice thing is the manual has the basics for all those, so you can do some reading/practice at your own pace. I highly recommend reading up on things like Peak Performance Buoyancy prior to the class, even if that isn't a dive you are doing.
In mine, the other skills we added were S&R (I didn't think I'd like this, but I really got a great deal out of it), Naturalist (which is really just diving and looking at pretty things), and Night, which was awesome and immediately became a favorite.
After AOW you can take a specialty if you want to focus in an area, which PADI will like, and can be great with the right instructor, or you can just practice that skill, or work with someone who is good at it, if you prefer that route.
My had one OW dive in my drysuit prior to AOW, and didn't find it difficult (I learned a great deal on that one dive prior though). As to whether to wait or not, I'd say it depends on your cold tolerance and where you are doing the class. Frequently you do three dives the first day, the last being a night dive, and the folks in wetsuits were somewhat miserable in the 46 degree waters of the Hood Canal on the last dive.
This past weekend I watched two guys do 3 dives wet in 39 degree water, and they couldn't get out of the water fast enough.
Good luck with the class!