Tough choice to make here... but let me think...
Entry 1:
This one's pretty awesome with the text that gives off the "feeling" of farewell rather than just saying "goodbye" or the like. It reads to me something that DF would have actually said himself. Plus the fact that the text may be faded but it's "still there" I happen to like The colors themselves work well together with the pixelations and it just all around fits even if the avatar is a perfect match.
Entry 2:
This one here is quite good as well... although I'll have to agree and say that the 'goodbye' is a bit much and too out there to blend in with the rest of the signature. I also like the fact of the different avatar to go with it... both Saber are standing strong like DF would have wanted. Good job here.
Entry 3:
The text doesn't really fit in with the rest of it and all in all it's a tad much for my tastes. The avatar itself is almost a perfect copy to the sig but with some added detail with the initials and slight bordering which in itself is pretty good. Unfortunately too much going on in the end for me.
Well... I've made my choice I think on which one I like best. Too bad there were only three submissions to choose from! I would have liked to see at least five to give things a shake up. I would have made something myself but unfortunately don't have what I need on this temporary computer :P Anyway good luck and thank you to all who entered and can't wait to see who wins!