Look into what is going to be the most reliable!!
We have Sprinters at work….the new ones drive very nicely….all of them have had multiple breakdowns though and all are less than 6 months/15k miles old
We’ve got a Renault Master on hire at the minute which has actually been really reliable and drives really nicely too.
I’ve had a LWB Transit as personal hire van a few years ago….really impressed with that, but only had it for 2 days.
My motorhome is based on a Ducato…..meh, drives okay….its basically impossible to read the speedo, cruise control is shocking too. It does weigh almost 3.5 tonnes though and a fair bit of weight is up high so that probably doesn’t reflect how the normal van would drive.
I had a quick spin in a new T6 a few months back…..basically like a car! 20 bikes aren’t going in one though.