I have 3 tractors, 2 are 2wd, one 4wd. I do not like the loss of turning radius. My last tractor I bought about a year ago is a M7040 Kubota, 2WD. Bought it just to pull a 10ft mower. Love it.
I find the 4wd frustrating in that you cannot leave it in 4WD. It is 4 Wheel assist. I find it very time consuming to keep shifting. The only complaint I have is with my 2Wd with a front loader on it. At times it would be nice to have more traction. However, I have gotten around this by putting a backhoe attachment on the rear. The extra weight is excellent and the backhoe is very handy. Expecially since I am usually working alone and need extra help moving/lifting stuff. Not to mention the ability to dig.
You can always add a 3 pt carry all with a barrel of water for weight if you need more weight on the rear end.
I have 2 Kubotas. I love them both. One has hydrastatic Transmission, use it to pull a finishing mower. I was looking at Mahindra when I bought my last Kubota. Kubota has some well designed tractors. Mahindra is heavier but more basic. Also, My kubota dealer was willing to find exactly what I wanted and go get it. I bought a brand new 7040 in December 08, it was an 07 model and they had rebates on it because it was over a year old. Fantastic price.