When I was faced with the same decision several years ago I fairly quickly settled on the DW735 and have been very happy with the unit. I also upgraded mine with the Wixey digital depth gauge (a very nice accessory, handy but by no means essential) and the Delta Universal Miter Saw/Planer Mobile Base (though this requires either drilling 4 bolt holes in the DeWalt planer's base or, alternately, mounting the planer to a 3/4" plywood base). It is fairly easy to move around this way, and I can also collapse the stand and then stand everthing vertical freeing up about 2/3 the floor space otherwise used when the stand is fully raised and horizontal (floor space can be at a premium at times. NOTE: The Delta mobile base is very similar to the Porter Cable mobile base now carried by Lowes (the Delta had material rollers, while the PC has material slides).
For me the positives of the DW735 over other similar models were the following:
+Depth gauge with common depths, including a minimum depth of 1/8" (some stop at 1/4" minimum thickness)
+Four Acme thead posts (one at each corner) are used to raise and lower the cutter head. This greatly reduces snipe AND if I ever run into an alignment issue, I could fix that issue simply by loosening the lock nut(s) under the table, slightly rotating one or more posts to restore alignment, then retighten the locking nut(s).
+Unlike most portable planers, knife changes are an absolute breeze with the DW735. You simply remove the 4 bolts holding the top cover in place, remove a couple of thumbscrews that secure the dust shroud over the blade and you have FULL top-side access to the blades to either flip (their 2-sided) or replace. The same hex wrench you use to open the top cover also unbolts the knives and has a pair of magnets for lifting/installing the blades so you don't have to risk actually handling the knives.
+As already mentioned, the built in blower, especially when coupled with a dust collector, eliminates 99% of the debris, and is very good at ensuring chips don't get pressed into the board by the outfeed roller.
+The two speed transmission is a big plus IMHO.
+Compared to other portable planers, the DW735 is pretty much built like a tank... Everthing that counts for durability is metal, with plastic used primarly as a cover material.
The cons, and I really only have one major con:
-DeWalt suffered from a momentary lapse in reason when they located the dust collection port on the rear center, perfectly located over the outfeed side. In other words, if you let gravity run its course, your boards will want to run into/pierce your dust collection hose as it drapes over the exit. The solution is to use a large twist-tie to tie the hose to either of the two top carrying handles -- this keeps the hose entirely clear of the outfeed side. (MY ONLY GRIPE!)
-Like nearly every other portable planer with a material removal gauge (the gauge showing how much material will be removed, not the actual thickness gauge) the removal gauge isn't especially accurate. Nonetheless, it does serve the purpose of warning you if you try to remove too much material.
Some consider the side-mounted depth crank, versus the more common top-side crank, to be a negative. I, on the other hand, seem to prefer the DW735's side-mounted depth crank. It is up to you whether this is a positive or negative in your use.
With the aftermarket Wixey depth gauge, you also gain the ability to perfectly plane a new piece of wood that perfectly matches the thickness of an existing reference piece. You don't even need to take a measurement, just insert the reference piece into the gauge and when the gauge reads 0.000 you are set to produce a piece that matches to within +/- 0.005". I find that handy when I inevitably ruin a piece and need to remake a matching piece.