How strong is Radiation Blast's AoE compared to Fire Blast?

I'm not home right now so can't look at the numbers. If someone can tell me it'd be great! I do know that both Fire and Radiation Blast has 3 AoE's each, but not sure how they compare to one another.

This is just from firing up Mids and looking at the base numbers:

Irradiate: 62.6 PBAOE
Electron Haze: 84.5 30 degree cone
Neutron Bomb: 56.3 TAOE

Fire Ball: 78.8 TAOE
Rain of Fire: 125.1 LAOE
Fire Breath: 109.8 30 degree cone

The big drawback to fire, depending on how you look at it, is the terror effect associated with Rain of Fire.