I'm at the beginning of the Whirlwind Maze, Cloud (level 58), Barret (level 56) and mandatory Tifa (level 47), else i've been using Yuffie (level 57). Doing a 100% file, i'm at 65 Gigas Armlets, just 34 to go.
To answer a question that i saw a couple of pages before, more people tend to use Barret and Yuffie/Cid more because of the damage outup of their Level 3/4 limit breaks. Red XIII lacks a trully hardhitting Limit Break, which isn't that big a deal on the early stages of the game, but later, it becomes a big setback.
Also i'm going for a Limit Break/Enemy Skill only challenge, it's kinda frustating at the beginning (right until you get White Wind E.S) if you're not a frequent Aeris user (Which is not my case, hate to build on a character only to have it taken mid way through the game, even if her limit breaks are the best support you get in all 1st CD).
If anyone has any question about FF7 or need a particular hint, just send a message, this is my 12th playthrough this game, and i know almost every inch of the game ;).
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"