Reel to reel tape machines are as good as gets, no one can get any better sound than a 2" 30 IPS properly calibrated 2 track reel to reel mastering machine, period.
Not even the best digital audio a/d converters can match a top of the line mastering reel to reel machine set up through the best preamps.
Most of the best LP records ever mastered come from the original reel to reel masters anyways, some newer records are made from digital masters or cut direct to a record master.
However mastering from reel to reel to any other format will always sound slightly or highly different. Depending on your playback electronics, phono cartridge, D/A converters, preamp, amplifiers and speakers etc. But nothing will sound as good as the best reel to reel master.
So as far as I am concerned, the best recordings ever made in history were done on a reel to reel machine, period.
And who cares if people don't like the format because they have to actually work at threading the reel tape and or calibrating their reel machine, and or they are afraid the reel tape will not last and will deteriorate over time.
The truth is, most reel tape masters have lasted through fifty years or so, except some reel tapes made in the late 1970's to 1995 due to a bad decision to change the chemical process they had sticky shed syndrome, but unlike records, most reel tapes still sound as good as the day they were recorded without pops, excessive background hiss and audible distortion.
I will not include here the prerecorded reel tapes, most of those were duplicated at high speed and have tape hiss and way too much treble and most sound like crap and are distorted, and in this case the LP records do sound better.
However real time recordings on to the reel tape format, such as studio masters, can not be beat for sound quality, period.
Even in a digitally sampled world, the analog reel tape picks up more audio analog information and translates it to our ears better, especially on the low, mid and high frequencies, which digital can not handle as accurate. This is especially the case with 44khz 16 bit CD's, that is why they sound harsh.