The Push vs Pull on a MIG debate has gone on for years.
I do both. There, IMO, is no difference in weld quality, penetration, look, etc, as long as you have the welder set right. So do what you are comfortable with.
I personally let the job dictate what I do. I am right handed as well. Sometimes, when working on an immovable object, the job dictates a right to left weld, therefore I pull. Sometimes, its the opposite. It just depends.
But you are correct, you get a better view of the "puddle" when pulling. Onve you get the feel of the motion, what it looks like, and what it sounds like, try pushing. Because while you cant see the puddle as well, you have a MUCH better view of where you are going without the torch and your hand in the way....
For example, when butt welding two flat peices together, and you have a tight fit and try pulling, it is very easy to veer off course and lay a really nicce bead, but only on one of the plates. Pushing is MUCH better for visibiliy in a place like this. Corner welds, or TEE welds, when you have two peices at 90 degrees and you are welding in a "corner", it is easier to stay on course no matter wether you push or pull.