I'll start. #43 is a great example of what I like. Here's a rough version:

And here's smoothed out a bit:

That's 256x256, but it also works well at 320x320. Larger than that and it loses the special rim-island-big-bay effect.
I love lots of tiny islands that are close enough to bridge... Never found a seed that works well that way, alas.

So what great ones have you found?
(I also love making the snowline in summer close to the water and pretend to play in the arctic. I wish there was a way to limit factories to, say, oil-type lines so i could generate an arctic-like map without having to manually place factories and connect them all... heh)