This really depends on how often you need to use the 4WD. I have owned both, and you get better gas mileage when you can manually disconnect the front, it usually amounts to about 1-2 MPG.
It is an inconvenience to have to get out and lock them in, but if you only need 4WD occasionally that probably won't be an issue, but it will be an inconvenience.
The other thing to consider is if you do need to use the 4WD for snow, having to get out and lock/unlock in the snow bites a big one, been there done that...
It really gets down to how often you will use the 4WD and if it's an inconvenience to you or not. If you're using it in the snow, think about getting out to lock your front hubs in when it's snowing.
