One - I use mass heal all the time on fvs, non-emped, and i rarely fail to top everyone that gets hit with it (and assuming I'm doing it right, that's all the people I need hit with it).
Second - why would a FvS "max cha to keep up" - and how would it even help them keep up? A few more sp? No good FvS does this - apparently only "Euro FvS" do this. Well, whatever.
Your examples are dumb, because FvS can do exactly the same thing (or if they can't, here's where to list why they can't!!! THEN you'd have a CASE!). How is this a DIFFERENTIAL of the two classes? You can't just post examples of one class or the other, you have to post HOW THEY"RE DIFFERENT. Same with your stupid levelling spell list and end-game spell list. Yeah, it's a bit harder to level a FvS, but any competent FvS player can get by with a subset of your "useful" list - and once you hit endgame, you will have all the spells you've listed, should you want them.
So, when you compare - don't compare your "offensive caster cleric" to "all fvs" - just pretend you made him a fvs, in exactly the same way, THEN compare. Same feats, same stats, same spells, up to where you can't have the same number, then look at what spells you'd have to dump, and THEN compare.