HDT are best budget performance coolers. The megahalem is the best air cooler as of right now. It even beats the V10.
What i like about the V10 beside it cooling like half your motherboard and ram is that the TEC thing is pretty sick. It basically doesn't let your CPU go over a certain temperature almost. It might not be the best TEC but its atleast decent. The V10 basically keeps your load temps at a constant temperature even when your overclock which is pretty sick. I saw graphs of someone with an i7 @ 4.0ghz+ and his temps were like constant high 50's to 60 load.