I think they’re both entirely different approaches.
Gi will teach balance and leverage a little better. It also slows the game down for beginners due to friction. This comes at the cost of playing “strip the grip” for 50% of your training time, which gets real fucking old after a couple years. I also feel the gi is harder on the cervical and thoracic spine as well (no-gi twisters not included.)
No gi is going to expose you to more wrestling technique, but training is often rendered stupid by the wearing of oil-slick rashguards.
Do both, and have fun.
Get good.
Don’t chase belts.
Honestly, it depends on the coaches. My son has a legend for a Gi coach so I don’t want him to stop that training at all. NoGi is cool, and he loves it, but the coach is nowhere near to the Gi coach. If you think you are such a big shot to get a black belt - a serious BJJ school will not give you that under 15 years. So yeah. If you get it faster, why don’t you just buy it - Amazon must have it for $30
15 years if you are a hobbyist and have no wrestling experience. If you train 4-5 times a week and have a wrestling background then getting a BB in 7 years is more than possible. It depends on commitment.
I guess depends on what do you call legit, and who is your coach.
Also I totally agree that intensity and commitment is a great factor.
But it may be gets you a few years. Maybe you can get a black belt in 10 years not fifteen. But it won’t affect the notion that in a “few”. You are not getting a legit black belt in a few. Maybe if you are a legit Judo black belt when you start Bjj. Even then I doubt less then 7 years.
Gi sucks. Nothing worse than tapping some scrub on no gi night and having them talk shit about how if we were wearing pajamas things would be different.
The notion that you cant get a BJJ black belt in under 10 years is silly. It’s all about mat time. If you attend classes 5 days a week consistently it’s completely possible to get to black belt in 8 years or less, especially if you compete. If you do two classes per day obviously that cuts the time down even shorter.
BJ Penn got his black belt in 4 years. Gordon Ryan got his in 5. There are many others not as well-known who got their black belts in less than 6 years. The common denominator is that they trained a lot, two or more times per day, every day. That and natural talent.
This the only part that rubs me the wrong way. Having no Gi experience, show up to class then tapped because the Gi is used as a “tool” to assist a submission.