Huh, Black_Tiger - are we disagreeing somewhere? I was agreeing with Bonknuts's assessment of the PC Engine's sound chip and added that a snerd likely wouldn't appreciate the difference since it wouldn't compare to Sony's chip. I don't hear much similarity between the the PCE and a Famicom, other than they both sound like 'video games'. Maybe I've had too much gin tonight and am not reading your post correctly; nah, there's no such thing as too much gin. 
I agree with you. My point is that I'm no tech spec expert, but if an expert were to tell me that the sound chips in the NES and TG-16 are identical, it wouldn't matter, since they both have unique sounds and are both capable of beutifiul music.
Even the stuff that Turbo haters say is 'basically NES music' is more of a generational leap over NES music than 16-bit graphics are over 8-bit.
As for Turbo vs Genesis sound/music, you can't ever make any fair direct comparison because even if the same composer does both soundtracks, they aren't going to be equally skilled at 'programming' both. And even if a music programming automaton was someday created that was as skilled as is inhumanly possible at programming both, it'd still be a matter of personal taste since both have different types of sound and strengths and weaknesses.
Many PC Engine CD games have digitized samples that sounded perfect to me back in the day. Like Ys IV, which has at least one sampled effect per boss battle. The Genesis may be able to reproduce samples just as good, but I don't think it gets much discernably better to the human ear in the middle of a real game.
In my personal playing experience, it seems that Genesis generated music has a greater potential to be misused, particularly on the fm side. I've heard so many great Genesis soundtracks that were marred by the odd misued instrument(s) or were unbalanced.
I think that the Genesis SFII soundtrack in many places sounds better than any version, including the arcade, but is such a mixed bag that overall it may be least good of the 3 16-bit consoles. Least good is still good though.
Unfortunately, since the PCE CD format took off before developers really started to maximize HuCard potential, HuCards and therefore PSG/chip music was never a huge priority for developers(unlike Genesis and SNES carts). Most games with lofty aspirations were put on CD since it was less limited, cheaper and by the Super CD era, more popular.
Still, potential is only potential and we only have real actual games to play. There is probably some Turbo/PCE 'chip' music to rival the games Joe listed, but I'm not overly familiar with those games or PCE HuCards in general. But there are also some CD games with special system generated music(
even though its not a great example of Turbo/PCE chip music, Dragon Slayer was an alternate PSG soundtrack).
