I own a Act Labs Force-RS and love it. I have compared to the Microsoft FOrcefeedback wheel, and the Thrustmaster (red, not the momo one) and would hands down recomend the Act-Labs. The wheel has a good clamping system ( though not as easy to use as the others). The wheel has a leather like covering which feels excelent ( the Thrustmaster rubber is nice also) the Foot pedals are the best of the bunch HANDS DOWN, they have the best weight, the others slide around.
Overall it has the best feeling construction of the 3. The feel of the force is the best also (IMHO) its the strongest of the batch, the Microsoft is 2nd, with the Thrustmaster feeling a bit light ... but the thrustmaster may be the best for precise momvent as the Force doesnt pull like th other 2. The force in the Act Labs is a bit "roguh" feeling when you get it, but from my research is the best..It feels better and better with use. I have heard the others get weaker and weaker..(but i do not know for sure). The best thing on the Act-Labs is you can use it on other systems with an Add On Card. Im very happy with mine.
here is how i would rate them after trying them all:
FORCE: 1:Act-Labs, 2:Microsoft, 3:Thrustmaster
WHEEL FEEL: 1:Act-Labs, 2:Thrustmaster, 3:Microsoft
PEDELS: 1:Act-Labs, 2:Thrustmaster, 3:Microsoft
UNIT Construstion: 1:Act-Labs, 2:Thrustmaster, 3:Micorsoft
CLAMP: 1:Microsoft, 2:Thrustmaster, 3:Act-Labs
CLAMP HOLD: 1:Act-labs, 2:Thrustmaster-Microsoft(tie)
Overall the only thing that is Iffy on the Act-Labs is the clamp, it holds great, but is just not as easy as the otehr 2, its not hard, just not as easy. The Microsoft works good has a nice clamp but to me just feels to plasticy, it works great though. The Thrustmaster was a good unit too, but the Force seemed a bit weak to me. Big seeling part for me was the ability to use it with Game Systems and my computer.
hope that helps a little
Clok