As a fairly new player, I'd have to say that if the option was there, I'd vote for both to be available.
I have a Molle rig from 204 Tactical, and I love it. I'll never really need another vest/rig because I can just get new pouches for any loadout I get.
On the other hand, the panel stuff may be hard to legitimize with pros vs. cost, there is a certain side to how they look. They certainly are good to have access to for someone going for a specific look that is made possible with panel gear, not to mention how simple it is. Even with my Molle I've considered getting a cheap panel vest just for CQB because of the simplicity factor.