Oh man thats a toughy, lol. If you can find Andy line it's great, last time I was at al flaretys they had it, eight pound is ideal and ten pound is just as good but lacks castability. Raven is also a great brand, it's a very limp and buoyant line, with decent strength, I wish I was running it right now.
Currently, I'm running p-line, its pretty good, but has a memory.
A lot of guys will say this is a no-no but almost before every trip I will tie my line to something and pull back on it to straighten it out and make it more limp. It definatley effects the durability of it, but your lead line should always be weaker then your main. I've never had an issue and seldom do I break off above my lead.
I've hear suffix is good as we and is much more convenient, almost at every Canadian tire.