Following is the stat block.
Hill Giant Champion
Huge giant (hill), chaotic evil
Armor Class 18 (plate armor)
Hit Points 262 (21d12 + 126)
Speed 30 ft.
STR 23 (+6) DEX 13 (+1) CON 23 (+6) INT 11 (+0) WIS 11 (+0) CHA 6 (-2)
Saving Throws Str +11, Dex +6, Con +11
Skills Athletics +11, Acrobatics +6, Perception +5
Senses passive Perception 15
Languages Giant, Common
Challenge 14 (11500 XP)
I think this guy is a little tough for a hill giant. Its CR is higher than a storm giant's! Pretty nice, non-the-less.
However, though not mentioned by the OP, I think it is generally accepted that you should post your own creations in your own thread unless contributions are specifically requested by the OP.