i agree 100% with GT, if Tarantino is going to take major influence from anything it's much better when it's kinda bad trashy stuff, but has brilliant bits. tarantino is great not only in recognizing the brilliance of genre stuff that is often overlooked, but he also has a knack for bringing many of those moments together in the ultimate homage film. this model doesn't work if he's influenced by Terrence malick, or someone similar, because that kinda film is more about the whole, despite having some astonishing moments. Tarantino works in pieces.
however, the best tarantino is when he writes more organically and influence (be it high or low brow) isn't so clear cut. the problem is, he has this "I'm going to tackle a (insert genre) movie" mentality and i think that's kinda bullshit. sure sure, people saw his influences in reservoir dogs and pulp fiction but they didn't ooze too much of fanboy. also, they were lower budget and less colourful/glossy. because everything seems like a set in his movies now, from all of kill bill(s) to the bar in death proof.
i actually like everything he's ever made, not a single film disappointed me enough to give it a fail. while i do nod my head understanding most points made in this thread, it's more-so because tarantino to me is a solid director that used to be inspirational. his newer stuff reeks of intent, the older stuff was made from a frame of mind that wasn't expecting the audience's reaction. though i bet it's hard to lose that headspace due to his popularity, every script is written with the fans/critics's possible reaction from the moment of it's inception i'm sure. maybe the best thing for tarantino's future originality would be if he had the ultimate bonfire of the vanities failure that would force him back down to earth.