Just watched the first McCoy episode, Time and the Rani, on UK Gold (mmm... Sky Plus means I can watch shows that come on at 7am). I watched all the Colin Baker ones except the Dalek one which they didn't show.
Sorry Brad, but Colin's Doctor is awful.
Trial of a Timelord makes next to no sense. He pushes people into acid baths, fires guns and just generally acts like a roleplaying character with a very arrogant player.
However McCoy was brilliant during the first episode. Little things like solemnly taking his hat off when he accidentally led a monster to be blown up on a mine, while Colin Baker would've arrogantly swanned off making some sort of intellectual quib with as many words as his peripetatic diction would allow consummation of.
Mind you it's still not all grins, all Bonnie Langford seems to be there for is to scream at an annoyingly high pitch. I'm sure it will be a plot-point one of these days - maybe they'll need to break some glass.