Stronger flavors... I tend to like less flavor... so here's a few I do like and own that I think have a stronger signature:
Tobacco (ish)
iVape's Sweet Caroline... nice robust tobac and kinda sweet undertone. This is kind of a hot new vape lately.
Vapor Station's Frisco (an amped up 555)
nHaler's Drewbacco 1
Halo's Torque
For sweet?
Vapor Bomb's Cinnamon Danish Swirl, Blueberry Smoothie. PB Cookie.
Tasty Vapor's Geoff's Blend, AC, banana nnut bread, caramel popcorn
Happysmokes: Grapes of Wrath is very flavorful.
and my favorite sweet:
VapeRite's Bananas Foster.
Kona Cream.
TG's Tobacco.
notice I didn't put my favorite - the guy I have 11 different juices from : Backwoods Brew on...
and this is because I think if you want a strong throatful of flavor, then you'd have to ask for it when you order... He tends to specialize in more in vapability than over-loading flavor.
But, if you indulge yourself in any of the BWB, I'd say go for his RY4 or honey flue cured or one of his fruits and ask for extra flavor as my GF does when she orders from him.