Well, if we are speaking practically, then you need to see what your character will need. You don't kill enemies with crafting skill after all. If you are using guns and metal armor and don't have points in the melee, stealth, dodge and evasion, then thinking about crafting leather armor and combat gloves is pointless which means that 105 points in tailoring is WAY more than you'll ever need. Think about what your char will use and then plan your points distribution ahead.
There are some investment that will be of use to almost any character.
15-20 points in electronics will allow you to craft Taser, and since quality of components will only affect damage it does, even if you craft it from trash, you will be able to stun your opponents for 1 round.
50 effective skill in biology will allow you to craft Focus Stim, which grants you +15% crit chance for 10 rounds. I don't think there are builds that won't benefit from this.
If our character doesn't use chemical guns, then 112 in chemistry is all he will need to craft most powerful mines and grenades. But if he doesn't have skill points in throwing and/or traps then he doesn't really need this either.
So, it all depends on your build, since there is no point in crafting something if you can't use it. What kind of build would you be playing?
