Hey OP, I hear your dilemma and have been there. Frank recommends the Schmidt above but also did a fantastic review of the March 3-24x52 a couple years ago now, you can read/watch that over here (though not sure how long the old Scout info will last) -
http://www.scout.com/military/snipers-hide/story/1481838-march-3-24x52mm-tactical-scope-review?s=541
I have also had the Schmidt 3-20 (it was not the ultra short though) and the Schmidt Ultra Short 5-20 along with the March 3-24x52. The March scopes are truly optical marvels of engineering, how they get such good quality out of an 8x erector design is surprising. My nickname for the March 3-24x52 is that it is the Poor Man's S&B Ultra Short 3-20. Here is a link to the review I did on these scopes -
http://www.snipershide.com/shooting...t-low-light-tactical-scope-evaluation-part-ii
Since you mentioned that weight and price are not an issue, you basically just took away two of the main reasons why someone might choose one scope over another. As you've already mentioned you have a concern over the parallax and while the parallax on the March is more finicky than the Schmidt and Bender I highly doubt it is going to cost you a shot once you get used to it, that being said I will say that the Schmidts have had some of the best parallax control I've used. In regard to ruggedness that is always difficult to tell, they don't do drop tests or crash tests like they do with cars on scopes (though it would be nice) and while a 34mm tube scope might "appear" to be more rugged than a 30mm scope I don't think you can make a valid case for that. Frank has beat up his Vortex Razor AMG pretty bad and I think it is still running strong for him and that is a 30mm scope.
For you the choice is probably going to come down to reticle. The Schmidt reticles don't really excite me and neither does the FML-1, Schmidt is coming out with a brand new reticle that looks promising (the
LRR-Mil) and the FML-1 has a floating dot that I like but I lean more towards the .2 mil hash reticles, though it is more about personal preference as I and many others have done just fine with .5 mil hash reticles for years. Glass wise the March is extremely impressive and actually controls CA better than the Schmidt but in most shooting situations both are going to perform flawlessly, I would say the Schmidt has the edge on resolution and forgiving eye box but the March isn't horrible. If you have never looked through a Schmidt I can say this, it truly is something to see, the image jumps out at you and the first impression is a gasp or a wow!, they are really that good. One other thing would be the turrets, both are low profile and I'd say the Schmidt has better feel than the March, the MTC takes some getting used to but with training should not be an issue.
Hopefully that gives you some more to chew on and helps you in your decision, but if money and weight are not an issue, I think the choice is clear, the Schmidt is the "better" scope.