Even though Bosch does make good tools, the Delta is a full step up in class. It's a bit like comparing an S10 to a 1-ton Silverado that happen to be the same price. The Delta has considerably more surface area to operate in front of the blade (safer and more convenient), more area in general, much more mass and better stability, much quieter motor with more torque, stronger materials of construction, a better fence, and should have better long term reliability. The Bosch is more portable. Unless you need portability, it's a no brainer IMO.
The ABCs of Table Saws
The ABCs of Table Saws