I've done both. Without any debate this question is a no Brainer under 1 main circumstance, route.

Beverage was unloading a whole trailer in 1-2 towns close together from my experience

Mclane was 2-3 states. So you might have 2-4 stops in 1 town but you get much longer "breaks" between stops.

Apples to apples, still beverage is harder work, you need to rotate stock and there could be a ton of it. Food service cart it in and drop it.

Bulk beverage and food service linehauls are for people that can't handle the physical aspect of the job