Right now, since I’m too big around (the glans) to have normal intercourse with my gf, I would choose regular intercourse.
I'd say intercourse since she mostly only wants to suck it and as good as she is at it I need more variety .
It's truly a wonderful way to cum. I've done that a few times although the one time I got blown while getting pegged was probably even better.
I'd pretty much always chose anal. With vaginal sex I do the withdraw method when I don't have condoms, which I usually don't. Oral would be a close second and hand would be distant third.