Um, those aren't D&Disms, S'mon. "Scry-Buff-Teleport" isn't a common assumption, nor is CoDzilla. It's a rules abuse/CharOps problem, a balance issue, not something related to the Game itself. .
2: The utter dominance of medieval western fantasy. Most campaign settings fit into this mold, with few significant alternatives. I wouldn't mind having more Asian themed settings, completely fantastic and over-the-top settings, settings with lost technology, and even Final Fantasy-like modern-magitech settings.
+1 to +5 weapons and armor. You never see fighters and such who carry weapons (or armor) through their whole career. Instead they dump their weapon (or armor) at the first hint of a new shiny.
Gold for magic items. It just throws any semblance of a workable economy right out the window, and punishes creative use of money - and mundane equipment.
In my experience, rarely are players or characters motivated by MONEY. Aside from the "Gotta steal" rogues, generally the only thing about loot that's exciting is that it is either about loot or getting your class abilities.Players need something to spend the money on.
Seconded. Will we ever get an edition without enhancement bonuses?...over reliance on magic items.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.