Might be in the minority here but personally I think the Best helicopter LEGO ever made was the Dino Attack T-1 Typhoon. What do you consider the best one they made? :
BrickLink - Set 7298-1 : LEGO Dino Air Tracker [Dino 2010] - BrickLink Reference Catalog
LEGO 7298 Dino Air Tracker | LEGO 7298 Dino Air Tracker Dino… | Flickr
LEGO Dino Attack T-1 Typhoon vs. T-Rex - Walmart.com
LEGO 7298 Dino 2010 Dino Air Tracker | BrickEconomy
Random set of the day: Dino Air Tracker | Brickset: LEGO set guide and database
REVIEW: 7477 T-1 Typhoon vs. T-Rex - LEGO Action and Adventure Themes - Eurobricks Forums
LEGO Dino Attack 7476 Dinosaur Helicopter Tank Toy Full Page Print Ad DAMAGE | eBay
Anyone remember this beauty from 2005? Dino Attack Helicopter, still one of my favorites. : r/lego
Dino Attack | Brickset: LEGO set guide and database
Dino Attack | Brickset: LEGO set guide and database
LEGO 7477 T1 Typhoon vs. T-Rex Set Parts Inventory and Instructions - LEGO Reference Guide
LEGO 7298 Dino Air Tracker | Lego, Brick loft, Dinos
T-1 Typhoon | Dino Attack RPG Wiki | Fandom
LEGO Dino Attack: T-1 Typhoon vs. T-Rex (7477) for sale online | eBay