I remember the SB Live! card being so buggy (at a hardware design level) that it only worked in one of my systems. It would actively interfere with other hardware in the system, and play stuttering sound.
You probably had a VIA chipset motherboard with AHCI enabled. For some reason SB-Crackle was a huge problem if the CPU went to an idle state on that BIOS. Was a HUGE problem on early Athlons. (like the 1ghz Thunderbird I had at the time)
I actually wrote a program that 'fixed it' by simply preventing the CPU from being allowed to idle (by basically running an endless loop in a low priority task)... then I found out all you had to do was disable AHCI to get around the problem.
As many have said I wouldn't say SB was "better", they were just ubiquitous. In many ways they were in the right place at the right time with the right formula. Adlib put Yamaha FM on the PC, but Creative had the price point to put it in the hands of consumers -- once it started being cloned driving the price point down for those who couldn't do it, it became free advertising. When EVERYTHING says "Soundblaster compatible" people are just going to think that's the "best" as it's what's being copied the most.
I've been doing MIDI since '87, and actually worked transcribing orchestrations to MIDI and having said transcriptions sold both as MIDI and as karaoke recordings. (hangs head in shame). For me, AWE32 and even more so the "LIVE" cards with their soundfont support took thousand dollar midi hardware as standalone rackmounts and put it into the PC form factor. The LIVE and the first few Audigy cards allowed amateur musicians to have access to synthesizers that were several thousand dollars just years before.
In '99 I was doing all my recording work with an EMU Morpheus (4x EMU8K w/32 megs of RAM on-board) -- a multi-thousand dollar expansion board. Just a few years later I had better sound capabilites from a single Audigy 2 ZS for what I was doing for a fraction the cost.
It's actually funny -- Adlib is what gave most people their first taste of MIDI, and in the process completely ruined MIDI's reputation. MT-32 was better, but actually not by as much as we'd have hoped and even OPL4/later wavetable suffered from crappy samples and piss-poor default settings. That few people took the time to program in pitch benders and channel aftertouch, much less a lot of hardware not even having consistent bender ranges, programmable bender ranges, or even SUPPORT for aftertouch further gave MIDI a bad rep.
Just for laughs, here's a sample from the Morpheus:
http://www.cutcodedown.com/music/sexBomb_morpheus_demo.wma
(excuse the WMA format, it's an old, old file)
It's funny as today we've got enough CPU to be doing this stuff entirely in software. Softsynths have spelled the death of the standalone hardware synth.
This is all softsynths:
http://www.cutcodedown.com/music/hardTimesEwi_take3.mp3
... but still MIDI. It's actually scary how far we've gone with MIDI tech.
https://www.youtube.com/watch?v=KIGXcMZ0WnE
for example. Sample modeling's sax's are mind-blowing... especially when combined with a wind controller like the EWI or Yamaha WX series.
Bottom line, to me prior to the 16 bit audio and MP3's being commonplace SB's really weren't better than the competition, they were just the media darling. Turtle Beach, Mediavision, they all did a better job. It wasn't until the AWE32 and later that they became better hardware than the competition.
But as others have mentioned, driver support has been total garbage in the post XP era. (and even some of the XP stuff was trash compared to working in Win98). Laugh is even their cheapo consumer models are far better HARDWARE with cleaner signals and better rates than anything that's ever been made for the Mac -- but on windows it still sucks because the driver support for professional level stuff like ASIO is nowhere to be found (and even when it is it's buggy as hell)... hence why kludges like ASIO4ALL exist. It's why pro audio tends to still stay on the Mac is that between driver changes and removal of certain tools, as well as missing drivers for what used to be the most basic of functionality, it's a train wreck on modern Windows.
... and it bites companies like Creative, Asus, Yamaha and Akai when they try to make consumer level / enthusiast products. See the EWI USB which lists windows compatibility on the box, but doesn't put enough emphasis on the fact you need working ASIO drivers to actually use it -- something not found on 99.99% of Windows machines.