Honda 2015 vs Subaru Legacy 2015 vs CAMRY?

Which is better first car. I would like to buy a car that I can keep for years to come so I want something that I won't get bored of and something that looks good on the outside as well as the inside.

Know any other cars that are better than the ones that I've listed?

One is not significantly better than the other. If you take care of it properly and drive conservatively, each of those vehicles could last 20 years or more.

Any of the three assuming by Honda you mean an Accord.

The subaru will blow a headgasket, maybe have a transmission issue, the accord will drive and look more sporty, the camry will last the longest and drive most like a luxury car

I'd recommend you test drive a 2015-ish Mazda 6 while you're looking around for cars. You might end up liking it better than the others you mentioned if you're looking for a less-boring option in a midsize sedan.