>>715239456
Those are the best modernish versions of 1 and 2 yes. Downside is loadtimes that comes with optical media but they mechanically preserve the originals while offering the best rendition of the soundtrack in my opinion.
FF anthology (4&5 if european, 5&6 if NA) is more of a mixed bag. I'm Europeland so to me 4 was decent enough and it's not based on the easy type unlike the NA SNES release. 5's translation is notoriously shitty on PS1.