CWB Marius is a great board and if you got the $ a DB9 is very light!!

I've ridden the Marius shape for a long time and love it. The newest shape "11-"13 is loose to Me and it has nice soft landings.

Faction/DB9 shape is stickier and to Me slower then the Marius but also lands soft.

The Marius is like a sports car and the Faction is like a Caddy in my opinion......

The Vibe is a flex board with long shallow adjustable fins and its featureless on bottom. I use it at the cable

Unless you land tail heavy flex boards seem to land harsh to Me!!!!!

Good Luck with your choice