The only one who would give Jones trouble on that list is Stipe because of his size/striking/chin and how skilled and crafty he is in general.
Izzy has no grappling/wrestling and he wouldn't even have the reach advantage to establish his usual gameplan. A grappling/wrestling clinic is unavoidable. That fight ends with some brutal ground n' pound or Izzy taking a nap after getting choked.
Jan is fun to watch, has a lot of power, but he's not on Jones' level.
People tend to forget how good and well rounded Pico is.