The standard Para2 is S30v. I don't think any para has been made in vg10, except for maybe early Para1 models??? But I don't think any were.
Also, taking up "much less room" in your pocket has got to be outright false. the para carries extremely flat in the pocket, which for most people means it takes less. Though it is longer, so for other that length might mean more, but thickness is generally what you feel in pocket.
Both the para and the millie carry like much smaller knives because of their thickness. Yet still have great ergonomics in hand due to handle design.
It's a toss up between the BM and Spydie, of course. both are very similar in specs. It's how they feel in hand, in pocket, and how they perform for your tasks. For me, the PM2 wins hands down. The steel should have about triple the wear resistance for a working edge (in my experience), but be slightly harder to sharpen. I like the feel of spydie's g10 and comp lock. And the handle ergos are second only to the actual Military
For you, though, the Grip might be better. Both are great.