Don't trust anything you see outside this forum when it comes to chilli.
The hottest chilli in the world IS the "Butch Taylor Trinidad Scorpion" aka ButchT Scorpion.
The Naga Viper is a crappy attempt at making money, and the only people buying into it and making the effort profitable is the people who aren't educated. Please, don't get me started on this issue - you want a hot pepper? It's already in nature - we just had to find it.
Hottest I've ever eaten? The butchT scorpion (dried). It was scorching, can't wait to try a fresh one next season!
I love the flavours of yellow peppers. Yellow is my favourite colour too so go figure. Yellow habaneros, fitali, yellow cayenne.... Love the yellow notes. I want to try yellow naga's and scorps one day
Salsa? I'm going to assume a red annum variety. I love citrus salsa's though so yellow cayenne combined with some hotter yellow/orange peppers - put a dab of turmeric in it too to enhance that awesome yellow colour.
It's all about passion and flavour. Believe me a habanero will give you a kick for a while so start low and work your way up to the hotter peppers as there's no way of preparing for them, improving your tolerance to habanero level will make it a little easier.