<font color="blue"> I have looked at the Sub compacts and im concerned that they may not be able to handle some of the rear attachments that I might rent or buy. Tiller, Brush Hog, post hole digger, and seeder. </font>
No need to worry about those, all of those are PTO powered implements and the more PTO horsepower you have the better. Most of the little Sub-CUTS (varies by brand) have engine HP that ranges from 22 to 25hp and probably averages around 23hp. The PTO HP rating will typically be about 4 to 5 hp below the engine HP on any of the Sub-CUTs with HST transmission. That actually ends up giving you similar or more PTO HP than the
B7510, CK20 or JD 4110.
Now you do have to size your implements properly for ANY tractor you buy. For example, a 4110 and a 4115 from JD are very similar in size, but the 4115 will be able to drive a slightly larger tiller or rotary cutter simple due to the added PTO hp.
A PHD requires very little PTO HP, any of the machines would easily power one, the only thing is with a Sub-CUT they do have lower clearance so you are best off to buy a PHD designed for a Sub-CUT.
A rotary cutter for ANY of these machines is going to be a light duty model, not one of the tractors listed in this thread is designed for heavy duty bush hogging. That said, you will be looking at roughly 48" to 54" light duty cutters. The more PTO HP the better.
A MMM is going to be roughly 60" for any of these machines, regardless of Sub-CUT or CUT. If your grass is thick, then I'd be looking at the 54" mower decks for anything below 23hp, regardless of frame size.
A snow blower seems to require moderate HP from my personal experience, unless you really get into DEEP or WET stuff on a very regular basis. I'd say any machine in this line up would be well suited to 48"/54" and the higher HP units could run 60"/62" blowers.
A seeder, (rotary?) requires very little power, any machine can handle this without any problems.
People differ on recommendations for tillers. I am VERY conservative with recommendations because I have very heavy clay soil. I would say that the more PTO hp you have the better. A tiller, if you run it the way it is designed to run, at full depth on the first pass, is a power hog. I would favor the higher HP machines and limit the size to 48" for everything but the
B7610 or the 4115, those could go up to about 54" at the high end if you have soil remotely close to mine. If you have sand, your sizes could go up. But in central Michigan, I suspect you have clay.
Do not underestimate the abilities of these tractors. A sub-CUT will do anything a larger machine will do. And the higher HP sub-CUT models have some serious advantages over the lower HP small frame CUTS when it comes to mowing due to lower overall height and better turning capabilities.