The B4.1 is a great car no doubt. I got a factory team version and it was an easy build and nice car. I now have a Losi 22 which is also very good as per peoples comments above, so you really can't go wrong with either. Durango is very much the new kid on the block and a couple of friend have the 210. The 410 some have issues with linkages bursting lipo's etc. But I don't know too much about them to comment
Bear in mind when you commented about the Mid motor in the 22 and mention about the B4.1 being able to be mid motor too - remember that to get your B4.1 mid motored will cost you well over another £160 for the C4.1 conversion kit
http://www.modelsport.co.uk/pages/cm...roducts/366927. The Losi gives you the choice out of the box but only in the kit version. The RTR 22 only comes set one way and you can buy the parts to convert it the other way which is a lot less than buying a C4.1 chassic for a B4.1 (sorry for the onslaught of initials! )