I own the Grizzly G0453X with the spiral cutter and am very happy with the performance. I've never used a combo J/P but have read they can be inconvenient if you need to switch frequently from jointer to planer etc.

I cannot afford to stock up on expensive european tools, nor do I believe they will make me a better woodworker. If you're an occaisional home shop user then go with the Griz or Jet and I'm sure you won't regret it.

Good luck with your decision.