Indeed Tri-cree is my favorite just for the full blade illumination. Although single LEDs look pretty close in a 24" blade. The light doesn't have as far to travel or get dispersed before it hits the mirror inside the blade tip. So a single LED in 24" gets about the same full consistency as a Tri-cree in a 36/32".
Yes, that was what I found most appealing. The tri-Cree wasn't super bright compared to my single Consular Green saber, but it was a more consistent glow. It probably has to do with the fact that green LEDs are among the most vibrant to start with and the eye is more sensitive to greens and blues.
My first pair/staff is Tri-Green and I love the look of it.
However I've also had the joy of seeing Blue LEDs through a Photon blade, and that's vividly Green.
My wife's Arctic blue saber with a photon blade is actually brighter and fuller then my Tri-green.
That's why in upgrading my staff to a pair of AB sabers instead.
I saw your video about Arctic Blue with the Photon Blade and it is very interesting. I read a review of the Photon Blade where they mentioned that a pure blue LED will make a cyan core like you mentioned. So adding a green LED would reduce that effect as your video demonstrated.
I'm guessing you'll go for the tri-Cree Arctic Blue?