Up first is Sony. Interestingly, their releases aren’t the classic Godzilla flicks, but the more recent ones, which die-hard fans might decry, but more casual fans will probably enjoy. Each set comes with two films in high def for the first time, and here’s the line-up of two-film sets: Godzilla Vs. King Ghidorah & Godzilla Vs. Mothra; Godzilla Vs. Mechagodzilla II & Godzilla Vs. Spacegodzilla, Godzilla: Final Wars & Godzilla: Tokyo S.O.S.; Godzilla Vs. Destoroyah & Godzilla Vs. Megaguirus: The G Annihilation Strategy. Cheesetastic!
Meanwhile, smaller label Section 23 has three new Godzilla Blu-rays out: Godzilla Vs. Hedorah (the very first Godzilla movie I ever saw!), Godzilla Vs. Gigan, and Ebirah Horror of the Deep (also mown as Godzilla vs. The Sea Monster). While these discs only contain one film each, they're budget priced, so it's hard to complain.
Finally, Universal has put out King Kong Vs. Godzilla, which might just be the cheesiest of them all! But it's still a lot of fun!