RE: Which .243 ?
I have a push feed Featherweight .243 that is a delightful little rifle. It did not shoot well out of the box, however; I had to free float the barrel and adjust the trigger pull. Fortunately these were both easy tasks and now it groups under an inch with handloads, but I need to let the barrel cool between shots to do so. The Winchester trigger is the easiest around to adjust yourself.
I am now also very fond of Remington 700s, having bought two this year. I love them both. I must say that it is hard to beat Big Green for out-of-box accuracy, but the Winchester Featherweight has a better trigger, a better safety, and best of all, a Mauser claw extractor with controlled feed.
I suspect that you'd be happy with either choice; shoulder them both and go with the one that fits you best.