Honestly, if you're new to detailing I don't think you'd be able to tell much difference between products. Despite all that you may have read about depth, shine, wetness, etc, etc, it's a very subtle thing to judge and is very subjective. I notice a very (very) subtle difference on my car when I topped it off with wax, but sometimes I really wonder if it's all in my head...
What to buy depends on what you want to do. Do you want a one-step wax that includes cleaning and waxing? Or do you want to get more involved and get a separate cleaner with a non-cleaner wax? How often do you plan to wax, and thus how durable do you need it?
As far as consumer-grade stuff is, Gold Class gets high reviews by many because many use it. Short longevity. The few that have used EO stuff tend to like it also, but maybe don't rave about it quite as much. Unknown longevity. Hopefully someone can answer your questions comparing the two, but I don't think many really can... :nixweiss
Meguiar's #26 is a long lasting non-cleaner wax, and #7 is a glaze which will clean ok for a new car (it shouldn't need much cleaning). The numbered stuff is Meguiar's professional line and are usually found in parts stores, not WalMart or something. I think GC has some light cleaners in it, but that's debated heavily here. Eagle One's liquid wax has cleaners, but their WET paste does not. Meguiars consumer line also sells cleaner and non-cleaner waxes, and also a 3-step system that includes cleaner, polish, and wax separately. You can see it on their website.
I just saved you a lot of searching and reading on some basics, but the search engine is an excellent tool here if you use it wisely. Also check out the Detailing Articles incase you haven't already. I didn't learn all the above 1st hand.
PS, I highly recommend claying first, even for a new car.