If you like plastic then go for it. It's your gun. One thing I can't stand is the guy that thinks what he like's is best and if you don't agree I am going to campaign against you and make fun of you 'til you agree with me. What the hell does abortion have to do with it?
That said I would agree with many of the other posters that the Marlin 336 deserves serious consideration and my next suggestion is to stick with a common caliber. The glory is that there are so many options though. Half the fun is dreaming about the next purchase. What ever you decide, as long as your happy with it, who cares! Good luck!