... has the better 'special' perk? (In your opinion).
Better Healing: This perk grants you the ability to regain more health from all consumable sources.
Spotter: Spotter will highlight all hostile enemies while you are aiming at them.
Stealth Girl: This perk increases stealth boys duration by 200% while also granting sneak attack criticals an extra 10% damage.
Regular Maintenance: Slows the decay rate of weapons and armor.
Whiskey Rose: This perk lets you consume whiskey and not have any adverse side effects or addictions, while raising your damage threshold.
Scribe Assistant: This perk lets you craft workbench items through Veronica's dialogue.
Enhanced Sensors: With this perk you can detect enemies at a very far range, and enemies that are cloaked can also be targeted in V.A.T.S.
Search & Mark: With this perk, chems, firearms, and ammunition within a short distance are highlighted when you zoom in.
Better Healing: Not very good in my opinion. There are still going to be weightless Stimpacks
EVERYWHERE, even in hardcoe. Might be useful at the
very early stages of the game until you are sitting on endless Stimpacks.
Spotter: Again not very good, its not really hard to spot enemies. Even if you are having trouble you can always enter and leave VATS.
Stealth Girl: Stealth Boys arnt really common items, its very situational. Good for when you are using Stealth Boys but nearly useless when you arnt.
Regular Maintenance: Could be helpful early in the game.
Whiskey Rose: One of the better perks, requires you to keep whiskey around however but that could all be piled onto the companion.
Scribe Assistant: Terrible.
Enhanced Sensors: Situational. Might be worth taking when you are going to be fighting stealth users and ditching after.
Search & Mark: Is finding stuff
really that hard?
Overall I cant say I would take any of the companions purely because of the perk they bring. The best out of the lot I would say is Regular Maintenance early on in the game and then Whiskey Rose a little later. This is just first impressions though without knowing the fine details which could change my opinions.