Scout
Primary: Baby Face Blaster. It's stats just doesn't work with how scout is supposed to be played. It makes the scout go faster, yes, but the downside with jumping removes boost is just plain trash, and removes on of the scouts most valuable abilities; Double Jump. It's key for scout not to be hit, ergo, he should be able to double jump at all times.
Secondary: Crit-o-Cola. Deal minicrits, take minicrits. Again, the whole aspect of not being hit dies when you take x amount more damage and damage fall-off is completely gone when minicrits are active
Melee: Sun on a stick. From a competitive standpoint, it COULD be useful, and then again no. Standart comp is: 2 Soldiers (Pocket & Roamer) 1 Demo, 1 Medic, 2 Scouts/1 scout, 1 off-class. In order to make the SOaS work, you would need to get a new meta where a pyro is run, as an off-class which is a big "meh". Also it would require INSANE teamwork, and coordination in order to make it work + the scout would need to risk his life in order to go in for a melee kill.
Soldier
Primary: Rocket Jumper. Fun, yes, practical? No. No damage, therefore useless in comp.
Secondary: Reserve Shooter/Righteous Bison/Panic Attack. One thing they all have in common is that they are way too under powered considering their counterparts. Any banner > RS/RB/PA. Any Boots > RS/RB/PA.
Melee: Standart shovel. All it's counterparts are superior.
Pyro
Primary: Degreaser. It just doesn't work in the current state of pyro. W+M1 is just superior, and considering it does -66% less damage it's just a direct downgrade.
Secondary: Manmelter. Direct downgrade.
Melee: Sharpened Volcano Fragment. In comp the medic is almost never dead. Therefore its only upside would be played out by the healing. Simple and ineffective.
Demoman
Primary: Wee Booties/Bootlegger. Primary > Health
Secondary: Sticky Jumper. Same as Rocket Jumper: Fun, yes, practical? No. No damage, therefore useless in comp.
Melee: Anything BUT stock. (Bottle/Scottish Handshake) Don't wanna go in depth with this one.
Heavy
Primary: Brass Beast. "Welcome to sItTiNg DuCk ThE gAmE"
Secondary: Anything but the Sandwich. Yes the banana is a decent substitution, but it only acts as a small health kit, not medium as the sandwich does. When, and if you run heavy in a comp standpoint, you want to keep that medic alive AT ANY COST. Bring big food, get big victory.
Melee: Warriors Spirit. Don't bring a knife to a gunfight.
Engineer
Primary: Panic attack. Too many good counterparts
Secondary: Pistol. Too many good counterparts
Melee: Southern Hospitality. Might not be that many pyro's in comp, but its still a downgrade imo.
Medic
Primary: Stock. Crossbow is just superior in every way
Secondary: N/A
Melee: Anything but Übersaw & Vita-saw. They are just superior, and the only other good option Solemn Vow is banned in comp.
Sniper
Primary: Huntsman & Reskin. Sniper rifles are just too good
Secondary: Cleaner's Carbine. Upsides are bad, downsides are worse.
Melee: Stock and reskins. Anything else is too situational
Spy
Primary: Enforcer. Bad, just dont use it
Secondary: rEd-TaPe-ReCoRdEr. It big succ, dont use
Melee: Big earner. Good in pubs, get oneshot in comp.
Oi! Don't skip!