I agree that Roddick's overall talent is highly underrated by folks here and his achievements are generally minimized compared to Hewitt's (whose achievements are often inflated). However, I wouldn't go so far as to say that he was "better" than Hewitt. I'd say they were pretty much in the same league with each other, and I'd probably give the slight edge in talent to Hewitt.
I think Hewitt had more of a variety of shots than Roddick, and was more versatile in his ability to play from different parts of the court. Although both of them were fairly one dimensional in terms of their baseline game,
Hewitt was a better volleyer than Roddick, and he at least has something approximating a transition game. His approach shots (though rare) were generally much better than Roddick's and he had better anticipation. Roddick had TERRIBLE approach shots and poor anticipation. He was more likely to put himself in a helpless situation which means he would often get passed at the net quite easily. As a result, he was more of a one trick pony that players could more easily figure out.
I agree about Hewitt's lack of weaponry, however I think Hewitt is a better returner of serve than Ferrer, and in his prime he was more likely to break the serve of big servers.
Here's the problem...Roddick's forehand declined after 2005. Early in his career he had one of the best forehands. Later on, he started "looping" it more, trying to be a consistent, baseline grinder. As a result, his forehand became less effective. If he had kept his forehand style/tendencies prior to 2005, I would have agreed with you.
Roddick was able to push Federer more in the Grandslams than Hewitt was, but that's not really saying a whole lot. I give credit to Roddick for reaching 5 grandslam finals (losing all of them to perhaps the GOAT). To me, that's a more significant achievement than Hewitt finishing two years number one in a vacuum era. But that doesn't mean that Roddick was a more talented player than Hewitt. It just means that they had different strengths and weaknesses, and both of them were really good players, but neither of them was ever the "best" player of their generation.
Be that as it may, the fact is HE LOST. And people don't remember who "almost won" or "should have won". They only remember who WON!
I'm not really sure what this means.