Well for me it's kenda excavator dtc, only all terrain stock them iirc but i love em, grip like a nevegal and roll better.
I have 2.10 both ends but i wish i went for a 2.35 up front as they can wash when pushed, great all rounders though up there with my nobby nics but thems me race day tyres.
I have heard of people running a telonix up front, never tried it though.
Anyway here's some reviews to swing it for you.
http://www.mtbr.com/cat/tires-and-wheels/Tire/kenda/excavator-dtc/PRD_414830_151crx.aspx
http://www.allterraincycles.co.uk/product/112752.html