The Pico Squeeze 2 for me, I have both but much prefer the Squeeze 2, don't bother with the kit as the RDA is pants but the mod is superb and reliable.
The only advantage the Pulse has is its lighter weight if that's an issue.
I had a COV Wraith but sold it after I bought a Squeeze 2, battery life and power is much better.
Are you going to tell me that you have a hadaly rda too!! Yeah I know that the standard rdas that come on the kits are usually not that great, was going to use my hadaly on which other one I purchase. Personally I was going to go with the Pico Squeeze 2 as I had the old pico (non squeeze) and it was a really good bit of kit, I only got rid of it as I preferred squonking. Where did you purchase yours from? Everywhere I seem to look they seem to be upwards of £50.