I am starting a new poll, to see which BTD5 tower upgrades are the best. Credit goes to DragonFiire (blocked).
Pineapple Division: Top 2 will advance to next round. Note that Artillery Battery has been removed from the original (since Mortar is in the original twice).
Pineapple Division:
Ray of Doom
Technological Terror
Spectre
Super Wide Funnel
Banana Division:
Viral Frost
Banana Research Facility
The Big One
First Strike Capability
Dart Division:
Apache Dartship
Bloonjitsu
MOAB Assassin
Cripple MOAB
Boomerang Division:
Bloon Liquefier
Spiked Mines
Glaive Lord
Summon Phoenix
Bomb Division (Added so all towers can be represented):
Aircraft Carrier
Blade Maelstrom
Overclock
High Energy Beacon