I played Silver Star for Sega-CD as soon as it came out, after playing almost every 16-bit JRPG'ish game teleased in North America, as well as several PC Engine imports.
It was neat that it was a JRPG for Sega-CD, since I love RPG'ish games, but it was never really enjoyable to play or experience in general. I still played it to death like I did every game and really pushed to progress through at the lowest level possible each time as a challenge.
It wasn't appealing or impressive as a Sega-CD game or as a Genesis RPG. It wasn't terrible, since it was still a JRPG, but certainly was disappointing.
Eternal Blue was the opposite. It was fun, even with Vic trying to ruin the gameplay, and it actually felt like you were experiencing a real adventure (as Grandia would do even further later on). It really felt like thr realization of the potential of the hardware/format and was the kind of HRPG experience that felt "right" and couldn't be found in SNES carts.
I bought Silver Star Story for Saturn as soon as it came out and couldn't believe how well they fixed the experience. I'm not a fan of non-random battles, but they did a great job with the balance between their distribution and the enjoyable battle gameplay. No longer a rough grungy world, I actually cared about the memorable places I visited and the characters actually felt like they had real personality finally, even with the language barrier. This was such a great start to what 32-bit 2D JRPGs could be and it's unfortunate that most would go off in directions that didn't appeal to me.
Eternal Blue for Saturn was fine and it was nice seeing a more colorful version of the backgrounds, but the Sega-CD version was still more enjoyable and a spruced up PC Engine version would have been much better.
I rented Silver Star Story Completd for Playstation when it came out and it was pretty disappointing how every part of the visuals had been downgraded and the long save/load times were particularly mood killing. The localization was a typical WD mixed bag, but the story turned out to be exactly how I believed it to be from my Saturn experience. I'd still much rather play the Japanese version of the Playstation game, if not the Saturn versions, just as I typically do the Mega-CD versions over Sega-CD.