I'd figure the capacities of intended work to be done and base the size of the saw as a starting point.
I've used the Makita 1013 (10" dc slider), DeWalt 716 (12" dc miter) and Festool Kapex(10" dc slider) as primary trim saws (use a couple more DeWalts for "rough" work)
The DeWalt handled all that the other two can except width of cut, mostly need width of cut for stairs, shelving and the like. No "dado" either with non slider.
The Makita was the old one and has served well but does not have the verticle cut capacity of the DeWalt, nor does the Kapex. Verticle cut of the Dewalt is very handy if taller baseboards and larger crowns(nested cuts) are needed. There can be, however, more inherent runout with a 12" blade.
I've recently sold the Makita and DeWalt to "offset" the Kapex. Features, accuracy, dust control and compactness in size and weight helped with the decision. I earn with it so buying for hobby or one time house reno might not merit consideration for budget. Need to bevel cut 1 x 6 whereas the Dewalt does miter cut of same. I expect this one to be the last I'll need.
Any bevel cut is much "nicer" to do with a slider compared to the plunge action of the DeWalt.
Accuracy for 99.9% of all trim jobs I've encountered is just fine with any of these saws. Verify the set of any new saw, make adjustments if needed and maintain the set over the life of the machine. Dead nut accuracy of the machine doesn't come into play very much when working trim on houses, that square cut just gives you a reference to show how outta square the house is.
Decent blades came with Makita (tenyru) and Kapex.... the stock Dewalt blade was adequate enough to suffice until better found.
Bosch, Milwaukee, Hitachi etc. all appear to be fine saws but have not had the occasion to use.
A 12" dc slider would certainly cover all of the above and if I had to pick just one saw it would probably be one of this size and that Bosch glider would be one that I'd look at real close.
Last edited by TomE; 03-04-2012 at 08:32 PM.
Reason: removed link put in by some vendor software.