200w solar system.....Lead acid OR AGM batteries?

I have been using AGM batteries for 8 years, maybe more
I much prefer AGM batteries over flooded batteries
And I had over 600w of solar on our previous RV

That said in your case the batteries make no difference in the decision

If this is for maintaining the batteries while the RVs are stored, put 1 panel on each RV
If this is for use while camping
Put 200w on each RV