Airbus FO seems to be more junior in most bases but we are talking 5-10% more junior so you may hold a line faster on the Airbus or it may be a wash. It depends on the base you’re after.

If you’re a tall one, the 737 can be pretty tight to get in and out of. If you’re 6’ or taller you won’t be able to stand upright. It’s also loud up front at 330 knots. The 737-8s&900s are geometrically limited due to their length and short gear so approach speeds are up ~ 25kts faster than a 737-700. That affects landing distance of course. ...and if you’re really not careful they can approach tail strike angles during takeoff and landing. That’s about it. It’s a good jet though.

My 2¢