I have not found a post that directly talks about the whole druid design.
My current opinion is that there is a flaw in the design that makes a druid really STR dependant, a lot more than the cleric.
I am not saying at all that the druid is not a powerfull class. I think it is a very nice class. I just want to point out that without strength, the possibility of a druid are a lot reduced.
Basically a druid has 3 main abilities:
1) Spells
2) Companion
3) wildshape
1) Druid spells are mainly divided into 3 parts
1-a) Summon, the worst summoner in the game
1-b) Buff spells: best animal buffer
1-c) Attack spells
The druid has a good attack spell, flame strike (I won't talk about call lightning, I have never understood the design idea behind call llighting... 3d6 damage on a single target with no level advancement is just lame...). However the druid does not have a lot of spells. So basically, the druid won't cast this one that much. Plus it lacks a bit of diversity in attack spells
The summon is very good, but it's frustrating that now the druid has the worst summon spells. But ok I can live with that because of wild shape (see point 3)
Out of that, there are some "effect" spells, communicate with plants, with animals, travelling, and so on. But nothing really shiny at medium high level.
2) Companion
The companion is a good add to the druid. It can deals decent damage , but, if we take the standard wolf companion, it does not deal a huge amount of damage. It's nice, but it's not shiny neither.
The companion can also have nice abilities (fly, stealth, to spy etc...).
These are good but not that mutch in combat.
Ok you can take a tiger... which is awasome ^^ But let's consider that you take a basic wolf.
Maybe the design idea here is to let the low str druid takes the tiger ^^
3) wildshape
Any animal wildshape spell gives a +1 attack bonus (basically +6str for huge transformation is +1 attack bonus only).
So if we take a druid with 10 str, that means a attack bonus of 8 at level 10...
This is very crappy. Very very crappy. It will deal ok damage because of str boost, but will miss a lot... Ok it can be buffed and so on, but it won't be extraordinary.
If we shift into small or tiny creatures, with weapon finess, we can have a nice attack bonus, but the damage will be really crappy.
The main difference here with the cleric is that the cleric has direct bonus on attacks and damages. The size is not modified hence no malus to attack! That means a level 10 cleric with the same str will have attack bonus of 10 with one spell.
Ok so a druid with low str cannot really fight. No issue I can use special abilities of shapes. Vortex of the air elemental for instance...ah...it is str based...hmm
Well, a druid can use wildshape to shift into a air elemental and fly and cast spells from the air...But the spell list is not that fun (compared with cleric and wizards. I don't ask for the wizard list hey, just more fun spells or varied effects)
Ok that's nice, but it's frustrating to be able to shift into that many creatures and only...fly...that's all...(ok immunities, etc...that's powerfull but it's not ...fun to just be immunized and do nothing really shiny).
A druid with decent STR (14 at last) will be a good shapeshifter and will be able to have fun, but I think that without a good str, the druid looses a third of its capacities and the class just becomes less appealing.
In fact, I would like some shapeshifting abilities that would be nice for a low str druid (don't talk about fly or etc...).
Sorry for my english, I m not a native speaker at all ;)
Thanks.