Not many folks on this forum have BOTH a T&C AND a Sienna, so you're results are going to be clearly biased toward the T&C. Perhaps you intrinsically knew this when you asked the question and are leaning toward keeping the T&C, and just wanted confirmation??
The drivers side power window - worst case is most likely a power window regulator. Cost for the replacement assembly is about $120. It's not too hard to do yourself, aside from C-A-R-E-F-U-L-L-Y removing the water shield (underneath the door panel). If you have it done, I would guess labor to about double the cost, but wouldn't really know, as I do that stuff myself.