This is my constant battle, to try to balance detail with musicality. I don't think I'm alone here, that pretty much is the holy grail of audio. A 'more forgiving speaker' might also be described as more musical. The above threads are all on target. A more forgiving speaker will make a weaker recording sound better. The trade off? Damn, there always seems to be a trade off. The trade off is, on a very good recording, you will not 'reveal' more information, like a unforgiving speaker. So it comes down to: warm, musical, relaxing sound versus: Woooah! I never knew they used two drummers on this track! Sometimes it can be a very tough call for me. I WANT IT ALL! But you can't have it. So I try to balance. For me that looks like a revealing preamp combined with a musical amp. It's all a matter of taste, and what is important to you. I hope this helped.
