Ahh... Guards, They can fight Grens, PGren, Stormies, Volks, Fusies and they fight any LV that comes their way they can also snare Tanks or vehicles without the need for damage or vet. They are far more versatile that AB guards + The commanders they come in are also more versatile. So I pick them.
At 360mp with a muni upgrade I should bloody hope they can fight mainline infantry.
Although I find Pzfuss with G43 beat them handily.