You act like 35% is THAT much better than 33% (from 3pt range). Monta has 50 less 3pt attempts in 2 more games played than Roy this year, so it's not like he's chuckin a whole bunch of 3s when he shouldn't be.
Of course his TOs are high, the ball is in his hands the majority of the time. Steve Nash, Dwyane Wade, Kevin Durant are all up there because of how much they handle the ball.
Monta at 6'3 is a more productive and complete player than B-Roy at this point if you want to talk numbers. He averages more assists, .3 less rebounds (Roy being the bigger cat at 6'6), averages more blocks than Roy and is 3rd in the league in steals. Ask B Roy how he felt after Monta locked him up when Portland came to Oakland.
The only thing holding Monta back is his lack of a team.