Everybody has their own preference. I always found sharpies to bleed but I guess that depends on your paper. I personally enjoy using the ball point pens and felt pens below.
I love these Jetstream ballpoint pens for rough sketches, so smooth and they seem to dry quickly.
I also like the Pilot Razor Point pens for line work.
http://www.amazon.com/Pilot-Razor-Point-Stick-12-Count/dp/B00006IFJN