I suggest that Tito cannot win a decision against Jones based on styles alone - Trinidad is a stalker, a powerpuncher and is not adept at adjusting mid-fight and Jones has better boxing instincts, motors around the ring, unleashes effective bursts of faster potshots and is content to coast to decisions... Age and size are not factors ( Jones 39 years old, 5'11'' tall and 74'' of reach, Tito 35 years old, 5'11'' tall and 72'' of reach) - the 10 pounds of additional weight is not a factor either realistically b.c. Tito's potent left hook and uppercuts will be able to keep RJJ from pressing for the kayo... So if Tito doesn't catch him with a destructive, murderous punch, nobody should expect a fighter who lost a dec. ( 120-107, 119-108 twice) to Winky in May 2005 to win a decision against a fighter who won a dec. (114-113, 117-110, 118-109) against prev. undef. Anthony Hanshaw in June 2007... If I was a Tito fan, I would expect him to show his usual determination, courage and resiliency to make a good fight and make best use of size and range to box more and last the distance.
Everybody with decent speed and punch output has a chance to win on point against the late Roy. His punch dropped down lately. Roy is the favorite here, no doubt. But there's certanly a chance for Tito to do it inside the distance (like Johnson) or on points (Johnson was ahead, Tarver also).