You can only do so much with a re-masterd CD. You can put some fine level of EQ etc. on the mix but that's about it. I think Bob Ludwig and my favorite mastering engineer Bernie Grundman do a wonderful job. The key would be to re-mix the original tapes or digital pro tools source where you could edit each individual track. This really isn't allowed by the the artists. However, some of the Beatles re-mixes by Giles Martin are very good.
Remastered CDs, HDCDs, SACDs
CD is my only source. My album collection is somewhere around 800 discs. I have found significant differences in SQ (sound quality) comparing original releases to remastered releases. To my ear, Bob Ludwig was the best engineer for that.
I was speaking with a local recording engineer and mentioned how much I liked Bob's work. He replied Bob boosted 2 dB at 150 Hz.
In order of SQ (worst to best) my rankings are original CD, original HDCD, remastered CD, remastered HDCD, original SACD, remastered SACD.
Those rankings are usually the case, though occasionally they may vary.
Happy listening to all. Enjoy the music!