A little off topic, but I once read that a study found that Bruce Springsteen's "Born to Run" leads to the most aggressive style of driving.
I can understand that, but I would have thought AC/DC's "Thunderstruck", would have been the worst song to drive safely to.
Well if you're being technical you could put Primo on that list along with a few others, but he created the hip-hop/funk genre as we know it, pioneered west coast rap, and continues to produce billboard toppers every year. He introduced the world to 50 Cent, Eminem, The Game, and he makes incredible beats. I also live on the West Coast, so that is definitely part of it, but I do know he has tons of recognition on the east coast.
Who do you think is?
Producers come and go, and Dre's time in the sun came ages ago. I don't listen to a lot of rap, so you'll have to entertain me by listening to my bad explanation. I don't have a lot of examples to work from.
The "funk" genre wasn't created by him, and he only really created that sound well on Doggystyle, where he
really did it well. I think it was his best. It was also Snoop Dogg's only good album, but probably because he "wants" to have a Dolemite (or Godfather, I guess) image, but can't pull it off because his songs have only been funky enough when Dre was still doing that sort of thing in 1993. He can't ride around in his Snoop-deville wearing a fur coat if Pharrell is producing is tracks. What a knob.
And while you're going to laugh at this, my favourite producers right now (for their hip-hop songs) are The Neptunes. Their sound is very "rock", it's aggressive, and it's coarse. It's exactly what is favoured today. Right now, it's all rock, glam-rock, punk, and anything else that's retro + rock. Sometimes it's sparse and minimalistic (I'll use a Jay-Z track as an example even though I don't like him, and say "Blue Magic" from American Gangster), and sometimes its really really grating and coarse. It's definitely not for everyone, but at least he's willing to make something interesting and may I say "daring". Everyone else is making derivative drivel, occasionally striking a hit song. Pharrell is also supposed to be a skilled drummer, so his drumwork is usually better and more unique than every other producer, probably because he knows the drums so well.
But anyway, in a few years, there's going to be someone else who knows exactly what everyone wants. The preferred "sound" in music always changes, and I really haven't seen any rap producer adapt well through every phase, Dre included. I don't really follow rap, but I'm sure he didn't produce Game's new album, and I don't think he produced 50 Cent's new album (entirely) either. And who cares.....it flopped.
Very few rap producers seem to fit in well with today's sound, IMO. Maybe Swizz Beatz, but judging from his own album, he doesn't really get it either.

Timbaland's 300-beat-per-second "slow" songs (eg: Justin Timberlake's "My Love") are still cool because nobody else can do it, but I don't find him particularly exciting at all. He's here to make hit songs with big names, varying his sound very little. I used "My Love" as an example. How is it different from "Cry Me A River" from like 2004 (or whenever)? He just relies on that "Transformers"-like sound he has going on in the background, and hand-clapping.
The Ninja Tunes label is "cute", but never caught on for some reason. Def Jux is probably irrelevant today.