Pokémon GO Max attackers

All forms which can use a Max and/or G-Max attack of the given type are listed.
Calculations are performed assuming level 50, an IV_A of 15, and Max level 3.
STAB is factored into calculations, when applicable.

Pokémon	Attack	P_-3	P_-2	P_-1	P₀	P₁	P₂	Relative
G-Max Butterfree	G-Max Befuddle	15673	25091	40145	64233	102772	164435	100.00%
Centiskorch	Max Flutterby	14455	23141	37026	59241	94786	151657	92.23%
Metagross	Max Flutterby	13942	22320	35713	57140	91425	146279	88.96%
Kabutops	Max Flutterby	12046	19284	30855	49368	78988	126381	76.86%
Butterfree	Max Flutterby	11195	17922	28675	45880	73409	117454	71.43%
Vespiquen	Max Flutterby	10088	16150	25839	41343	66148	105837	64.36%
Garbodor	Max Flutterby	10047	16084	25734	41175	65880	105407	64.10%
Trapinch	Max Flutterby	9073	14525	23240	37183	59493	95189	57.89%
Sizzlipede	Max Flutterby	8181	13097	20955	33528	53645	85832	52.20%
Metang	Max Flutterby	7843	12555	20088	32141	51426	82282	50.04%
Combee	Max Flutterby	4552	7287	11659	18655	29847	47756	29.04%
Caterpie	Max Flutterby	4306	6893	11029	17646	28234	45175	27.47%
Metapod	Max Flutterby	3691	5908	9453	15125	24201	38721	23.55%
Shuckle	Max Flutterby	1968	3151	5042	8067	12907	20651	12.56%

Pokémon GO: A Quantitative Approach