Fully patched yet?

Trying to decide on SH3 or SH4 as both are the same price. I read the reviews here and SH4 sounded very unfinished when it first came out. Are its biggest bugs fixed yet? Since SH3 is older, I assume it's more corrected.

If anyone has both, which do you prefer? Both theaters of war are fine; it's the gameplay. I'd go back to SH2 but I'm having graphics issues that apparantly are not going to be fixed unless I put my old video card back. So it's upward to 3 or 4.