I've boiled my mod collection down to three that I use regularly:
1. SS Chi_You (versatile, dependable, beautiful - what more could you want in a mech?)
2. Provari (it might only look good with a handful of rebuildables, but it works perfect every time)
3. Galileo v3 (stainless steel version; beautiful, but 100% stainless steel, so the voltage drop leaves something to be desired. But it will also probably outlive all of my other mods because of it)
Now for mods I have owned in the past:
4. Cronus (heaviest, hardest hitting stainless mod you can buy, hands down)
5. Pisces-T (great hard hitter, and looks amazing with a Kayfun on top!)
Now for my top 5 rebuildables!
1. Kayfun Lite Plus (decent price, looks beautiful, and the one atomizer I grab more often than any other)
2. Bliss v3 (the best genesis atomizer I've ever used; simple and elegant, but sometimes a pain to setup)
3. AIOS T/D (somewhat of a nightmare to set up correctly and maintain a steady vape, but it's well worth the effort!)
4. Nimbus (my go-to dripper)
5. Bulli A2-T (a classic; it was my first rebuildable ever, so it'll always hold a special place for me)