Monorail would be the fastest I think. I'm not exactly sure how often they run, but it seems like every 10 mins. It leaves MK and goes to Contemp., TTC, then the Poly and then G.F. I'd allow 20-30 mins. Probably that's more time than you need - that would be worse case scenario. That would allow for time for the monorail to come to MK, then the loading and unloading at each stop. If there are wheelchairs to load it takes a little longer as they put up a ramp to the monorail. If the monorail is there waiting for you at the MK, I'd say you could be at Poly in 10 mins.