its actually a significant disadvantage...mouse locks on faster and way more accurate than analog sticks.
for sure man, I played competitive BF2 COD4, In TWL and CAL we won a few seasons in TWL and a infantry season in CAL BF2...we played against teams like next level and team hot.. that was on a computer, then i started playing console games and I am pretty good... but nothing like i was on a computer, getting kicked and banned from servers for "hacking''
The only thing i think it can be is the controller, I just cant move as fast as I can and as precise as i can on a computer.. its really fusterating actualy.