(1) You have hit points. If your hit points run out, you die. Duh. Shamans (and many other classes) also have mana points. There are two stats - Stamina and Intelligence - and one point in one raises hp or mp by 10. (HP for Stam, MP for Int. Obviously.)
Shamans have a spell that converts MP into HP at a ratio of approximately 1:2. There are a few downsides - for example, you can't attack during that time. On the other hand, in parties, shamans are (in my experience) rarely doing much damage anyway, and are mostly acting as healers and buffers. Which isn't a problem.
So you'd think that everyone would quickly realize "Hey! For shamans, one point of Intelligence is roughly worth two points of Stamina!" but you'd be wrong. Most people will take Stamina over Intelligence. Every single time. Because "with more stamina you have more hit points, and so you don't die as quickly". That's the only reason. Nothing else more subtle. Just "more hp = die less quickly". And I point out that they can heal, and they say "But if you have MORE HIT POINTS that means you DIE LESS QUICKLY".
For some reason I am unable to convince people that "more healing" also means "die less quickly", and in this case, it means "die even less quickly than otherwise". They're not arguing the "random chance" point, where you might get slammed with greater than your max HP in one hit, while if you had more HP you could survive and recover. They're also not debating my 2hp = 1mp point. They're just saying it takes longer to die in a standard battle if you have HP instead of MP.
(2) Imagine you have two weapons. One of them swings every two seconds and does 40 damage. The other swings every four seconds and does 82 damage. Both of them have a 5% chance of doing a critical hit, which is an extra 50% damage.
Which one would you think is better?
I would say the one that does more damage over time. Most people would pick the faster one, because, and again I quote, "it does more critical hits". Now, for some characters, critical hits might matter beyond the added damage. But even when they don't, even when the sole effect of a crit is the added 50% damage, they will pick the faster weapon.
I don't understand this either. You'd think a 5% chance of doing an extra 50% damage is equal to an overall 2.5% damage increase. But apparently nobody thinks this way.
So. Can anyone explain this?