My two cents as a finish carpenter and cabinetmaker - the Dewalt saws IMO are the most versatile combination of accuracy and capacity. NO saw has a greater capacity than the Dewalt 12" dual compound slide. It also has the best miter scale of the bunch. The bevel guage is not easy to read but as of yet I have not found one that is. However as has been pointed out the larger the blade the more deflection can come into play. Usually this is only a problem if you are trying to trim minute amounts of material of the end of a piece, but if you cut slowly and use a good blade it is not a big problem. Makita also makes a great slider, 10" or 12", main difference being in the max depth of cut possible. Whatever you do, make sure to get a saw that will bevel in both directions, so you aren't flipping the stock end for end in your garage all the time just to make the cut you need. Makita, Dewalt and Hitachi are the only ones that make a dual bevel slide saw that I know of.
PS a little advice on blades. If your wallet can handle it, buy a Forrest blade to go in your new saw. It is one of the more expensive brands, but there is no other brand that cuts as glass smooth as a Forrest. Freud, Amana, Systimatic, Delta, Makita, Dewalt, I've tried them all and none comes close. Look for the add in Fine Woodworking and buy a Chopmaster for your slide or chop saw and a WoodworkerII for your table saw. Also make sure to send it back to Forrest for resharpening. For some reason they are the only ones who can get the blade as sharp as new.