MAC had a much bigger hold on the market before microsoft came along, just microsofts business model was better, they gave people what they wanted quicker and faster, there was no real competition in terms of that... microsoft just did it better than mac did.
If you realy want a dash board, then you can always use samurize, it's an external program, (third party0 but it gives to effectivly a dash board, just with a LOT more stuff than the Mac dahsboard does.
If you want to be able to just drag an drop programs to the bin, then this can be done but only with certain programs, most EXE files can be self contained, it's just that a lot tend to use the registry etc to store setting rather than ini files, (as would be a better idea), but that's just the microsoft way, but it's not the only way...
There are far more applications for the PC, (including good video editing)... most, (if not all MAC video editing programs are also availaqble on PC, unfortunatly the same can't be said the other way around...
Definitly PC...