Best battles in "giant monster" movies

[Brother Ragnarok]

You mean third that choice?  I already pegged that one as well.

[Dave: Blackeye15]

The T-REX vs. Kong was a good battle.

-the first rule of fat club-

[haze]

Godzilla vs. Gigan- silly melee battle is both amazingly stupid and entertaining!

Godzilla vs. Rodan- older one, really funny effects coupled with the cackling chirp of rubber rodan

Godzilla vs. Mecha Ghidorah was a great time, loads of spiffy sfx and silly silly combat

Godzilla vs. Orga- long and juicy romp with beam weapons and lots of melee action.

[Flangepart]

Gamera Vs. Irus final showdown.
Godzilla Vs. King Kong.
G + Jet Jaguar Vs. Megalon + old buzz saw belly.......(singing) He dickey, made of steel-eat sushi from a paaaaail! Jet Jaguar-jet jaguar, her mommy never love him..."

[illcos]

definitely godzilla vs. mechagodzilla.  good call.