There may be discussions over this or that aspect of the 3.x rules on the forums, but to imply that 3.x is not the baseline from which the latest version of the rules must be judged is ridiculous.
4e will stand or fall on it's own. That's the nature of a new edition: you get to start over fresh, at moment one. It's a different game.
4E is about fixing the problems inherent in 3.x
That's a highly simplistic, and I'd wager, incorrect, view of it.
4e is, in part, about adressing some of the problems people had with 3e.
But it goes much farther, and does much more than that, too.
Otherwise, we'd have 3.75, not 4e.
Whether or not some people switch will be driven by how well 4E addresses the problems of the previous edition.
Actually, to switch or not is a very complex, and highly personal consideration, on which many both objective and subjective things weigh. It's not reducable to one simple estimation of rules quality.
The choice is, do I continue to play 3.x and its various problems, or do I switch to 4E and whatever problems it may have
That's a false choice. No one is making you play 3e, even if you don't play 4e. You could go with any other of a multitude of games, or even spend your free time in other ways.
4e isn't just competing with 3e's rules quality, here.
In the case of 4E, we've already seen enough to know that playing a 4E fighter is more interesting than a 3E fighter.
That's one of those subjective things that depends on lots of personal variables that are entirely independant of 3e or 4e's quality of rules. And, again, one of those categorical statements that don't really lead to good conversation.
What we have seen is that 4e's fighter has at-will powers that can be used all day long. Some people have expressed concerns that these powers, when the rest are expended, will be used over and over again, rendering the fighter a one or two trick pony by the time the day's out.
Is this more interesting? That's going to depend on a lot of subjective criteria, ultimately.
You cry about trip. . . how many people aside from trip specialists ever used it? In the case of trip specialists. . . they just did the tripping thing over and over again, so weren't really any more interesting than the straight melee types anyway.
I wasn't crying about trip. I was offering a specific counterpoint regarding your claim that 4e fighters clearly had more options than 3e fighters.
I said in 3e, a fighter (or anyone else for that matter) could choose to trip as, effectively, an at-will power.
In 4e, the fighter can only trip once per encounter, as far as we know.
This means that there is evidence that the 4e fighter has
fewer options than the 3e fighter. So people are justified in their concern.
I happen to think 4e fighters probably will have enough options to keep them from repeating the same move over and over again in 4e.
But that has
absolutely nothing to do with 3e, 2e, 1e, BD&D, OD&D, Chaimail, Cops and Robbers, The Story Stick, the Lord of the Rings, the legends of the Sidhe, the color of the sky on Thursday, how many jellybeans are in a jar, the Blogosphere, or who shot Mr. Burns.
If 4e has a problem,
it's 4e's problem. No amount of decrying 3e is going to change that, justify that, or make it go away.