I am pretty sure Jet bought out Wilton, and parts for Wilton tools are harder to get, I also think Jet's customer service is much better. I have a Delta Midi lathe, it has been a great machine so far, bought it on sale locally and saved enough to get a good chuck and turning tools, no regrets so far other than I can't find an extension which would be nice to get the tailstock parked out of the way sometimes!
For drill presses, the floor models generally have better bearings,usually longer quill travel and less quill runout, something to consider if precision is a major requirement. I had looked into the Jet Benchtop and it seemed to be comparable to a floor model they have.
For table saws, do your homework and get a good one if you will be using it a lot. Some of the cheaper Jets I have heard aren't a very good saw, so don't assume it is good just because of the name, although most of their tools are good ones. This would be one of my picks. http://www.cpopowermatic.com/products/1791228k.html
My dream shop would be all Powermatic tools, lol, right now they are on sale and still out of my reach!

Grizzly had a similar saw, but I think they discontinued it, Shop Fox also has one similar to the Grizzly on sale now, it has a similar fence as the powermatic also.