Meh air bags are expensive! I'm sure it doesn't take much to set them off in a Tacoma. If you look at the front end with the plastic bumper removed it is pathetic. Just a thin aluminum little crash bar. A 1/4" aluminum bumper will provide much more protection. Maybe not from larger animals, but definitely smaller animals and light impacts. I'd be afraid a 10mph impact in the front of a tacoma would put it out of commission.
An aluminum plate bumper gets my vote. Better clearance, better protection, carries a winch and fairly light st 55lbs for a pelfreybilt. The ARB or other steel bumpers are heavy. The us offroad winch carrier isn't a bad setup, and is more reasonably priced, but if I remember right it weighs 65lbs. Does not improve front end clearance. However it would add some small amount of protection for the radiator/trans cooler etc.
The front hitches with portable winch mounts seem like a good idea, but in practice I didn't like it. A winch on a portable mount is big, heavy and awkward. And either you carry it all the time, or you don't have it when you need it. It sucks getting stuck in 2' of snow, sliding off of a trail out in the mountains, and having to climb into the back of the rig and drag the winch around. It sticks out too far to leave it up front while off road.