Just seems if the Garden City Skyway is going to be 8 lanes whenever the new bridge is finished, you may as well maximize this capacity with 8 lanes to and from the bridge. Aside from busy holiday weekends, the QEW flows fine through St Catharines but 8 lanes would sure be nice here and toward the 405/420 when the skyway is twinned.
Regarding the skyway project itself, I do happen to agree with you BUT it is good to have redundancy in the network. You can close one of the bridges completely for rehab work, and you get full shoulders on each side vs the 0 shoulders today. Ever been traveling on the QEW when there is a breakdown/crash on the skyway? It ain't fun.
As for the HOVs, yes get them pushed to Grimsby at least for now, and eventually to the 406. That will help stagger the 6-3 lane merge at the Red Hill interchange quite a bit further down the road. You'd still have a bottleneck, but at least it's a long bottleneck and not a stubby