Gen 8 Starters Stat Predictions
Have a BST of 530. Its easy to start at 500 and then add the extra 30 to anything that could use a little extra stat boost

Things we can agree on

Scorbunny will have low defenses around 60-70 and high speed above 100. Atk and special could could be be even or atk low and special high

Grookey will have high attack and low special attack. It could have high hp high defense low special and average speed or high

Sobble will have low attack and high special attack. It could have low or high hp, low or high defense and low or high speed its hard to imagine what its final evo will be, timid looking or growing up to be agressive

My predictions

Scorbunny
Hp 70
Atk 105
Def 65
Spa 95
Spd 75
Spe 120

Grookey
Hp 90
Atk 115
Def 110
Spa 65
Spd 65
Spe 85

Sobble
Hp 85
Atk 65
Def 70
Spa 130
Spd 115
Spe 65