I have many reds but the reds I reach for the most are:
- Russian Red (Although I prefer Ruby Woo. I just rarely reach for RW because it is so drying, but when I do, ...
)
- Deeply Adored 
- Charmed I'm Sure (colourwise comparable to MAC Red, but I prefer the texture of CIS)
- Runaway Red
- Scarlet Ibis. I reach for Scarlet Ibis more than I reach for Lady Danger. LD is just a bit brighter, a tad more orange.
I also think colours like Viva Glam I are very flattering. It is more flattering on me than Chili. It all depends on my mood and the weather I guess...