after many years of use, my old 788 failed. I didn't want to be without a saw so I bought a new 788 a little over a year ago. I could of got an EX at my 15% discount at Woodcraft, but I chose to go with what worked for me. I'm not saying that there was anything wrong with the EX, I just decided to stick with what worked for me.
Both saws pretty much work the same. After all, both saws originally were designed and built by the same company, Summerville Designs in Canada. DeWalt then sent the manufacturing to Taiwan, And summerville sold out to General International, also being buit in Taiwan.