Let me be the first to say I hate working with dricore and I have a bunch of times (+10). I have done it both ways.
The fact that you get a tiny bit more r-value and keep PT wood out of water is not worth the possible issues. I have had issues with getting the bottom plate to set right on dricore and teetering of the outside plates with too much downward pressure (it is like you can't have too much down pressure or teetering but not enough and your wall isn't stable).
The only negative I can think of is that putting your walls up first you will need some scrap wood to nail into bottom plate for more screwing surface for drywall.
The whole purpose of dricore is to keep your flooring and materials dry. You aren't putting stuff on the other side of the wall.
Also if you haven't bought the dricore I would strongly strongly suggest rigid foam panels and plywood.