I definitely wouldn't. The Iveco has a better chassis and (possibly) rear axle, at a weight penalty. Outside of that they're flimsy with poor build quality, interiors that fall apart and rubbish Italian engines. The auto Ivecos use an 8-speed ZF which is a very good gearbox though. The 7-speed Merc box is a solid reliable piece of kit too.
The 906 Sprinters are the best, 2018+ 907s aren't as nice, interiors not as good.
I'd much rather have a Sprinter. (Which is why i already have one, have had 3 before, and am trying to buy another.)
I deal with a lot of vans in my work (mechanic) and stand firm that the 906 Sprinters are the best by some margin.