5 1/2" / 6 1/2" corded circcular saws
i own 2 makita lxt and switched all my cordless to them,its a 6 1/2 blade use it on cabinets and trim,plywood,etc.
i do have a dewalt 5 1/2 trim saw which was my first i kept it just incase i would need a smaller blade, but to be honest after i installed 400 kitchens with the makita set and saws all my dewalt stuff never came out of the garage.
so my take is that a 6 1/2 saw is versitle for all finish carpentry.
BTW all my dewalt 14.4v stuff is on central nj craigslist if your interested.