Okay, at first glance you'd think that Godzilla could simply wade through the tripods like they were cardboard. But remember the War of the Worlds tripods (Spielberg's Version) had ray weapons that could incinerate flesh instantaneously. Would that weapon still work the same on Godzilla or would his Organizer/Regenerater G-1 counteract its effects? Also, could the tripods shields hold against Godzilla's atomic beam?
The key, in my opinion is Godzilla's regenerative properties (G-1). If Godzy doesn't get incinerated after being blasted then those Martian war machines are toast.
NOTE: For the sake of argument, let's stick to the Martian tri-pods from the Stephen Spielberg movie version. Any version of Godzilla (past or present) is acceptable.