Hands down, the best thing out there for PCs is Adobe Premiere. Only problem is it's about $800. I've never used the other programs you mention, but I would go with Pinnacle Studio Plus simply based on its features. If you're interested in doing a lot of editing in the future, especially if your plans include working with a lot of footage, I would seriously look into saving up for Premiere or even one of the Creative Suite bundles with Photoshop and After Effects.

I personally have used Premiere, Final Cut Pro, Avid, and a few others like iMovie and really old versions of Pinnacle Studio from 1999/2000. My favorite would have to be Final Cut Pro, followed by Avid, and then Premiere.