First off, welcome to GTO!
Second, many, many of the players here have been playing since the 90's like yourself (me included) and many have been playing even longer, and if its one thing they'll all tell you without exception its this: the "old wolves" can always learn new tricks. This game is organic- not static. Its considerably more dynamic than the ole Infantry Push Mechanic you found in the original and the strategies have developed to be correspondingly sophisticated. In other words, even the most experienced player will tell you that they are always learning.
You feel the Allies can dominate a G10? Cool. I know many players who would be interested in playing with you and learning any strategy that will do that - myself included. New and different strategies are always welcome.
But just keep this in mind: an experienced board player will have 50-100 games under his belt, while here you will find many with a thousand or so games played. I think you will find that the game-play is commensurate with the experience, and that experience is considerable. I agree GTO doesn't have a monopoly on A&A, but it probably does have the largest concentration of talented, experienced gamers anywhere. The strategies employed at GTO are the result of thousands of games, by thousands of gamers, who have each added to each other's game play through experience and discussion. And they are still evolving and growing.
I'd suggest trying a light read through the strategy threads. While commander chaos may post some of the funniest messages on the boards, I disagree with him and say that you will find strategy ideas from many of the most experienced and talented players on GTO. But I do agree that you should take it with a grain of salt. There are many ways to win this game, and after seeing the wide variety offered on the message boards, as well as your own experience, I'm sure you'll find an Axis strategy that will win with a G10 bid.
If you see me in the lobby, I'd enjoy a game.