I had vans and strt trks with the 3 companys you mentioned,vans with Panther mainly cause or my rate 85 loaded plus sur and i know the system and how to make it work for my fleet.I Had a strt with XPO about 9 yrs ago with a team and did fine,had a van and strt with Load1 and did well also.I would say if was gonna put a van on it would be Load1,the only issue i had with Load1 and it may have changed was i couldn't broker my own loads.That was something Panther let ya do,minus 15 percent to them.I Don't know if they still allow it cause i got outta strt trucks about 5 yrs ago.