Is last ditch effort good or worth using compared to other main subs?
#Thoughts on Last Ditch Effort (S3)
rare zephyr
frank palm
yes
gleaming pelican
Even in Turf War or only in Anarchy Mode?
frank palm
Both
gleaming pelican
Okay, thank you 
thin latch
What modes is lde going to benefit the most in?
mighty ledge
I never use it but I think it can shine during splatfest
prisma socket
What modes is lde going to benefit the most in?
In terms of once it's active, Tower imo- best mode for stalling objective w/ bomb spam. Zones next Ig, but really helps w/ Rainmaker defense as well.