You're unlikely to have a BAD experience anywhere in the house. So if you're going for rock bottom price, you'll be fine either way.
The only thing I'll say is that I personally prefer being on the long sides of the oval if I can - e.g. "3 o'clock" and "9 o'clock" on the circle, over the "12 o'clock" and "six o'clock" ends. Don't break the bank for it, but if you can find seats of comparable price, or with a small enough price difference, I'd recommend sitting in those side sections.