I believe you need to correct the title to PM-25MV or PM-727V. So a bit different animals, and you probably should throw the PM-30MV into the mix, as it is only $100 more than the PM-727V. The PM-25MV is the light weight, if you are only doing small stuff which is fine, but it is a 1Hp and only 2 belt speeds with 50-2250 RPM. Start drilling some 1/2" holes in steel or want to do some hole saw cutting and you will probably run out of steam. The limited Y and Z travel will be quickly be eaten up by a vise. Fly weight mill, but fine for small projects.
The PM-727V is also 1Hp, but with 6 gear speeds, a speed range of 40-3000RPM, you get a lot more versatility and power of the variable speed. Very nice, but gears = noise, haven't heard this one so it may be not bad, but I would not want to run it at 3000 RPM all day. Still this would seem like a great all around light duty mill with both low speed and high speed attributes with a bigger working envelope. Good all around combination light weight but versatile mill for light duty projects.
The PM-30V adds to the PM-727V, speed range is 50-2250 RPM, but with a 2 speed belt drive and double the Hp should make a very nice well rounded midsize bench top mill that is quiet and has a bit larger work envelope. It runs off of only 220V power, which will give a big difference in motor performance, but you need to have 220V available. Also the bigger work table and travel is something to really think about. You quickly can run out of travel, especially if you decide to add a DRO at a later point.
Weight is really not a large factor in these sized machines, they are all relatively easily moved, and weight = stability. Not sure what the issue is with the power feed as to what is available, it is also very easy to either adapt or build one yourself. The PM-932M comes in at the same cost of the PM-30V, but you are now looking as significant more weight and a much bigger machine. Think of what you want to do and maybe would like to do at some future point. Do not short change yourself for a nominal amount on something you will probably out grow quickly. I would suggest staying with the Pm-727MV or PM-30V.