I do a lot of DIY timber framing. In an ideal world I would use a 16" or 12" Grizzly (not available over here in UK) or 12" Makita. This is because when you are cutting the ends off 6" beams or dimensioning on trestles, one of these will do it in 2 cuts. Since I don't live in tool heaven what I actually use is a 110v Hilti WSC85. Bought it from a timber framer here actually.
If you intend to do any serious amount of framing, the standard workshop Makita and that ilk will bog down. This is not what you want in large dimension timber when you are frequently working at the limit of the saw, as it feels unsafe.
There are lots of Hilti's around used. I have Makita and Skill (never used after Hilti arrived) and for dimensioning boards a top notch Mafell track saw. For serious timber work the Hilti beats the others hands down. Good dust clearance, motor never falters, runs straight and true, very heavy duty.
If you live anywhere near Tunbridge Wells you are welcome to come and look at what I use, including the slicks, chain morticer etc.