Cocoon (maybe spoilers)

[Del Murder]

I think it's a cop out to say that. You can have a time travel storyline and still have it make sense without gaping plot holes.

I don't think you can, personally. I'm a firm believer of "If you're going to take a time travel story seriously, you're doing it wrong."

Well the point is about having it make sense, not having a story that you personally enjoy. I also like time travel stories where you go back and forth (though not FFXIII-2's 'everything is a paradox' bullcrap), but that's not the only way to do it. As long as you define clear rules and stick to them, you can do time travel right.

The Time Traveler's Wife is the best example of how to do it right and still be a good story. Everything in that book happens as it happens and going back in time doesn't change it. The other method is to have alternate dimensions for each time change, which is done in Star Trek and X-Men. Some of it may be ludicrous, but it at least makes logical sense in context. It's easier to make this work in a novel or comic than in a game, though.