First, I would move Alakazam & Gengar each down 1 tier and change the explanation. Instead of Listing them at thier Max tier with the Note Move them down 2 tiers if you don't dodge. I'd list them down 1 tier with the note: this is assuming you dodge Big Moves, but not Quick Moves. You can move these pokemon up a tier if you dodge everything, or down a tier if you dodge nothing. It's a more realistic list to place them in the middle of the Range than at the top of the Range
Second: I would take the Commonness of Vapereon into account more. There shouldn't be a Water Pokemon in Tier2. Vap is too common for this. Omastar/Gyrados are fine because thier dual type provides some matchups where they beat Vaperon.
Slowbro with WGun/Psychic is something I cant for the life of me see myself using.
I'd move Rhydon down 1/2 a tier. The Quick Move charges slow and isn't ideal for dodging. No pokemon with a "15 Quick Move" should be in T1
I'd move 1 Fire Type and Jolteon up to tier2. Considering the number of Waters/Gyrados in particular I see in Gyms, my Jolteons are some of my most use. Yes the plants do better against Vaperon than Jolteon does, but not against Slowbro/Dragonite
I would get rid of Pound/Pyschock Jynx from that list. I can't think of a single matchup where if I am going for Pychic Damage vs say Muk where I would take that Jynx over a double pyscic Hypno/Slowbro
I can see using the Double Ice
If you are going to have more than 1 Pokemon in Half Tier mark like Tier1.5 get rid of the Half Tier Level.
Tier1,2,3,4
accomplishes and is neater than 1,1.5,2,3