The Oregon line would be fine, but for the most part line is line. The only difference comes down to the size of line. The bigger the line, the better off you can be, but it will also depend on what size line your head can handle. Sometimes the bigger line won't feed through the head and then you are back to sqare one.
In terms of square line over round, this does not make too big a difference. A smaller 0.65 line is meant more for electrics while the 0.95 would be meant for gas. Another option would be the Oregon Nylium Starline. This is a more durable line with an aluminum additive to it.
Thanks,
Mowers Direct