Hughes obv as people have said.
But your other point is not wrong, the cupboards are bare, i mean clifford, harrison, Mercer, simmonds. All play 8 but non of them have the weight/carrying ability of billy/hughes. Which is bad when you think we have 12 teams. Alot seem to have foreign or past it No.8s
Cant wait to see simmonds in an england shirt see what he can do. He's just not an answer at 8. Underhill hughes simmonds for last 20. Also looking fwd to seeing Genge aswell.
Since when does a player need to have the weight/carrying ability of Billy/Hughes to be considered an 8?
I guess the following are terrible role models, because you just can't be a successful #8 if you weight less than 120 kg
Zach Mercer: 190cm; 105 kg (BMI: 29.09)
Sam Simmonds: 184cm; 103kg (BMI: 30.42)
Louis Picamoles: 192cm; 116kg (BMI: 31.47)
Sergio Parisse: 196cm; 112kg (BMI: 29.15)
Kieran Read: 193cm; 110kg (BMI: 29.53)
Jamie Heaslip: 192cm; 110kg (BMI: 29.84)
Taupe Faletau: 189cm; 110kg (BMI: 30.79)
David Pocock: 183cm; 103kg (BMI: 30.76)
Nathan Hughes: 196cm; 125kg (BMI: 32.54)
Billy Vunipola: 188cm; 130kg (BMI: 36.78)
IMO Simmonds is more-or-less as bulky as he can go, Mercer's probably got another 4-8 kg before stressing his frame (based on eye-balling their physiques).
If anything compiling this list makes me wonder which teams that aren't England have a #8 in the Billy/Hughes mold (I'd also argue that Hughes isn't in the Billy mold either - even in terms of size/power)