Let me quote the best 5E fighter's post I read so far (in particular the first paragraph), from the wizards forum:
"People. If you play a Fighter and you never do anything but make attack rolls, that is your fault. Fourth edition has trained players to look at their character sheet to see what their powers allow them to do. Fifth edition is, very specifically, the opposite of that. You say what you want to do, and you make a check to do it. You don't have to have a power to do it, you just do it.
Use a Strength contest to shove the other guy into a pit. Use a Dexterity contest against an enemy during your movement to fake them out; if you win, you gain Advantage for your attack this turn; if you lose, the enemy gains Advantage on their next attack against you. Dexterity check, DC 13 to swing from the chandelier and crash into your enemy: if you succeed, make a melee attack with +1d6 damage. If you fail (by 10 or more, as per the Hazard rules), fall flat on your face. Strength check DC 15 to throw a barrel of water down the stairs; if you succeed, anybody on the stairs has to make a DC 13 Dexterity save to avoid being knocked prone and taking 1d6 damage. Dexterity contest vs. Dexterity or Constitution to throw sand in a guy's eyes, blinding him until he uses an action to clear it out. Strength check to tip over a bookcase, forcing anyone on the other side to make a Dexterity save to avoid being pinned underneath. Anything you can think to do, you can do. But not if you're looking at your character sheet for inspiration, because they can't possible outline every possible action, no matter how many powers you have.
Yes, everybody can try these stunts. But Fighters will be better at them, as their primary stats are the Physical stats, so they'll be higher. Wizards and Clerics will need more mental stats, so won't be as good at these sorts of stunts. Even a Rogue will want Wisdom and Charisma for perception and social skills. Beyond that, a Fighter's ability to smash face is still balanced with the abilities of other classes; the only problem is that it feels boring to only attack and attack and attack, no matter how effectively you're attacking. But if you can't come up with something to do other than swinging your sword, that is your problem. You don't get to blame the game system for your own lack of creativity, especially when you're playing a game that's specifically designed to thrive on creativity.
(And yes, I'm aware that this type of play and stuntwork requires a DM that's not a useless lump... but having a decent DM has always been important in D&D. That's not new.)"
I could never have said it better. 4E has always felt like being restrained to me. Just my 2 cents, however.