GONO2,
Here's a couple additional items you may want to consider. I was on my way out the door yesterday and did not have time to post.
If you are comparing the 2210 and the 4010, I think you there is the definite need to look real hard at your future tasks. As mentioned, the 2210 has more PTO HP with less capacity (weight and height) on the 3 point and the FEL. So if I was deciding between the 4010 and the 2210 and I had a lot of mowing (maybe even break mowing down to include bushhogging as the additional PTO power would come in handy for this appplication) and snowblowing and less FEL and 3 point work, I would tend to look at the 2210.
I mow about 2 of my 7 acres and I have the 54 inch deck. I have never even had the engine slow down when mowing and I use my setup to boxblade my 500 foot driveway and I tend to use the tiller and FEL quite a bit. So for me, if I was doing it all over again and had to pick between the 2210 and the 4010, I would still go with the 4010.
Since your post was really comparing the 2210 and the 4110, I will throw this additional info out:
While the 2210 has 23 HP, it runs at 3000 rpm to develope 17.7 PTO HP. The 4110 has a 20 HP engine that developes 17 PTO HP when running at 2650 rpm. If you are really looking hard between the 2210 and the 4110, then in my mind (and I've been wrong before--just ask my wife), the 4110 is more machine in every category except engine HP. When you add the fact that the 4110 developes it's peak HP at a lower rpm, that would be more than enough to offset the 3 HP difference.
Hope this info helps and does not make your decision more difficult.
I doubt you would be unhappy with any of the 3 machines.
Good Luck
Bob