Count me as one who likes the PGA Championship and kinda likes the different courses they take it to. It's not the US Open or The Open Championship, but the PGA of America knows that and doesn't try to be something they are not. I like how they have the stones to admit their championship is slightly different for a major, but a major nonetheless.
In my opinion a venue does not a major make. I think we can all agree Atlanta Athletic Club is not the country's, state's, or even city's best layout. But, it has produced two very exciting PGA Championships in the last 11 years. I guarantee you no one who plays professional golf has concluded that David Toms's or Keegan Bradley's wins were tainted because of the venue. Valhalla produced one of the all-time most exciting tournaments when Woods beat Bob May.
My point is, just because the PGA of America sometimes goes to "lesser" courses, the championship's status doesn't go down. Plus, the championship has gone to some pretty good courses (in the last 10 years it has gone to Oak Hill; Whistling Straits, which the USGA wanted to use before the PGA aligned itself first; Baltusrol; Medinah; Southern Hills; Oakland Hills; and Hazeltine). That's a very decent lineup.
Sure, I wish it would go to some of the courses already mentioned, but in most instances we all know it's not going to happen. LACC, Sand Hills, Pine Valley, CPC...it's just not going to ever be reality. Same with going back to match play. I love the idea as well, but it will never happen again, as television will never allow it. Instead of sitting here wishing the PGA Championship was something different, I like it for what it is.
It's like my favorite quote from Coach Norman Dale: "I would hope you would support who we are, not who we are not."
To answer the question, and this is coming from a midwesterner, I think it should go back to the west coast, as it's been too long. Riviera, Colorado GC, Pumpkin Ridge...something like that.