I don't think it's love though, for neither. Just like in the OG, he wavers between them, but he doesn't understand "love" or the feelings associated with it (too fucked up in the head). He's definitely attracted to both, and both are very important to him, just in different ways - the Avalanche team also is important, as is Barret. I just don't see him being in love with Aerith in Remake, at least not yet. And they've known each other for 3 days, so that's normal. With Tifa, it's a bit different because the feelings are here, but they're hidden. What I really enjoy I think is all the relationships and how they're described in Remake, may they be pertaining to Cloud or not.
I think what's really interesting is that Remake, LT-wise, is telling you TWO stories; there's the one that leaves an impression on the mind, however if you rewatch and analyse the scenes, it paints a really different story. At first you get the impression that Cloud's attracted to both women, but that at the same time, Tifa's really special to him. When you go in detail, you realise that he's not wavering *that* much, even if you can get that impression. It was insanehobbit who did an analysis on the filmmaking of some scenes, and she said that after doing that, she had 0 doubt about what they were doing - and I agree!
I should really go into chapter 11 and put my analysis of it here, because it's really interesting to see what they've done with it.