Sooo I took my time to think it through.
First and foremost, I need time to read through the druid kit, I hardly know what druis do so I can really speak of the last build. I have no idea how the character will be operated so I can't say if the build is to my linking or not.
Now, the caster cleric build, I totally read all the post which the build comes from with avid interest. The thing that "scare" me is the part of getting enemies wet, I don't want that part to feels like a chore. Of course, that's where my lack of knowledge is kicking : I don't know how it is done other than throwing water bottles on them. I need to see if there is a spell to create rain or something (which sounds thematical withe these two classes anyway). If not, I feel that constantly keeping water in the inventory and restocking might feel unfun (at least for me). On the other hand, if there is an easy way to get things wet, the build sounds really fun.
In the hand, the party seems to fit my goal.
Since I haven't finished my first playthrough (damn, it's hard to find some playtime once you get older), it's still on a planification stage anyway. I think MC is the big pivot point on how the whole comp will go. I want the MC to be a charism class and I want it to be warlock or partly warlock. The obvious choices are warlock / sorcerer or warlock / paladin. Since the second character is, in my view, totally stopped on being Minthara with the sharpshooter build, the two other are totally dependant on the MC ending on a martial (warlock / paladin) or caster ( warlock / sorcerer) build.
Still on theorycrafting, what do you think the comp could end up being if the MC was a warlock / sorcerer ?