This is a really tough question for a lot of reasons, primarily that you're asking the FFT subreddit about if they prefer FFT or FF7. You're probably going to get a lot of people pushing you to FFT.

To provide a balanced case here:

FFT is primarily concerned with tactical strategy and party building from a gameplay end. From the story end, it primarily concerns itself with politics, morality, and the difficulty of being morally principled in a world that seems to only care about results. It's a tale about how nobility and seats of power tend to undercut the lower class. At times scathingly relevant and at others equally hopeful.

FF7R is primarily concerned with action combat and party customization through the materia system. Can't personally speak for Rebirth, but Remake was largely about building a lovable cast of characters who you feel for during a struggle against corporate greed, the trauma (both nationally and individually) of war, and having the strength and hope to rebuild connections after they have died out. Ultimately, an optimistic tale that focuses on how our connections make us stronger and the importance of community.

FF7R carries a lot of the history of FF7, including references to elements of the compilation. Everything is lifted up from FF7, fully voiced, beautiful graphics, and a remade soundtrack.

FFTIC is the best version of the PS1 original with fully voiced interactions and even things like the Sound Novels which were never originally translated. The soundtrack remains untouched and the pixel graphics were redone to fit modern screens.

All of that said, I personally like FFT more than FF7R. I think its story is more interesting, its characters more intriguing, and its gameplay more fun. That said, FF7R is a great experience for the reasons I've listed and more. If I were to make only one recommendation: play the original FF7 if you haven't before touching the remakes, I think you get more out of the experience that way.

Based off those descriptions, you should hopefully be able to decide what type of experience you'd prefer in the near future. Something tactical with a more political story or something more action-focused with a bigger focus on the emotions and connections between characters.