I don't think PR is particularly operable under our current system, even though I would support it under a Westminster one. The real problem I feel is gerrymandering. Frankly, in my own situation I feel completely unrepresented. I'm shoe-horned into District 9 even though 18, 14, 12, etc. are all closer. District 9 was competed by two candidates from Central Pennsylvania when Western Pennsylvania is represented elsewhere. Districts need to be done impartially and for the best interests of the citizens in the area, not of a political party.
The fact of the matter is even if districts were always drawn impartially, democrats will always lose out simply because of how dense democrats are settled compared to Republican distribution. Districts will never be impartial, which is why I favor some sort of proportional representation scheme.
That's not the basis point of my argument. I feel districts should be redrawn to give the local populations more say over who their representative is. That could even mean more districts (Something I'm not opposed to, as it doesn't particularly matter to me how big Congress is or isn't). Like I said, I'd like to be represented by someone who at least has a vague idea of where I am in the world. What would Bill Shuster ever do for my town? What did Mark Critz or John Murtha ever do for my town? My area really hasn't been particularly well represented in the past decade since they gerrymandered Frank Mascara (a friend of the family) out of the House. I've really despised the way redistricting has been done since then. In my view, a representative really shouldn't have to represent such vast swaths of areas that they've never even heard of. Even if it means more districts, I would be in favor of it.