What is the strongest kekkei genkai besides all the dojutsu and mokuton?

[closecombat22]

Crystal release by far

 

[2nd hokage]

Crystal
Steel
Storm

 

[shelke]

Mei's Lava and Boil Release are quite impressive, along with Iron Sand, and Haku's Ice Mirrors.

 

[paratise]

İron Sand
Kimimaro's kkg (hardens bones like steel, produces them at high rate and regen)
Liquifying Technique of Hozuki clan
Boil release