It really is dependent on what you want Tominos. If maximum power potential is what you are after the B16 is going to have the greatest potential. However, if you feel you would be satisfied with a bit more power (usually about 40 more hp) then the turbo D16 seems to put out good numbers also. From all my reading, it just seems to get tougher to get power beyond 200hp. Up to this point things can and will get more expensive as the increase in boost will require an increase in internal strength, and in the end a B16 running the same turbo is going to get you more power. Ive been mulling over this decision for a while now, and I have plenty of time, because no matter what the choice, it will cost you a pretty penny. It seems to be the game we all play, striking a balance between budget and performance needs.
By the way SleeperCivic another turbo D16, I love seeing that! Ive been all about finding people who run turbo D's and hearing about their results, it can only help me make my decision. Also, I see by your webpage you have an mp5 wagon also? I know this is off topic, but how do you like it? (IM me if you like, so we dont distract from the thread)