Honestly there is no way to tell you what the "best" or "most accurate" way to build a suit is. The answer is: whatever way you want to go. A lot of people here on the forum do some amazing things with Eva foam. The 3d print builds always look super nice. Fiberglass and bondo can be really fun and rewarding. It just depends on your resources, skills, and desire.
If you are on any kind of deadline, fiberglass and bondo may not be the way to go because it tends to take a very long time. But the supplies are generally available at like Home Depot (no waiting for shipping).
If you have a good 3D printer, that may be the way to go. I have an ender 3 and I don't even want to think about how long it would take just to print the pieces for a full suit. Also, cleanup of pieces and failed prints can be a pain as well as ordering filament and editing 3D models.
Foam smithing tends to be a popular choice because its relatively quick and the armor is more comfortable than a hard plastic suit. On the other hand, I feel like it's less forgiving of craftsmanship errors and it wouldn't feel right (to me) to wear a suit of armor that weighs like 5 pounds total... Frankly, I don't have any experience with foam so I don't really know much about it, that's just my opinion.
There is also thermoforming plastic or PVC for making armor, but it's not super common on this forum. I know the 501st tends to do more of that bc they don't allow EVA foam armor. I also don't know much about that process but was thinking about looking into it for some star wars cosplays.
My advice is, read some threads about the different processes. Check out the tutorials we have here and just see what feels right for you. The situation in Texas seems pretty rough and I hope things start getting better for y'all down there. A project like this can be really great for distraction but really difficult if you don't have power...
Good luck! Looking forward to seeing what you choose!