I have, and have used both for a long time.
My preference depends on the task at hand: doing framing and a lot of off hand cutting, I like the left blade because I can just look right down my mark line and go, or easily use a speed square for a guide.
For panel cutting, like piecing out full sheets of plywood, I usually use the right blade saw, because first, I am severely right handed, and when I reach across a panel, it is easier to do using my right hand; second, the shoe plate on the right blade saw is wider on the left side, and the waste piece will either drop off or separate to the right, and the saw will just sit on that wide part of the shoe so you don't have a loose saw winding down when you're stretched out over the panel. I also have a clamp-on guide that is only 3/8" thick, so I can cut fairly thick material without any motor housing interference; however, if I adjust the depth of the blade to just clear the thickness of the material up to 1/2" thick, I can use a piece of one by six for a guide by clamping it on the left side of the guide with a couple of spring clamps so the motor clears.