I tested Gas & Electric hobs in a laboratory for 27 years and sent all the results around the world and to magazines such as WHICH.
At one time gas was much better than electrics for control but designers got their heads together and made hobs that were just as controllable.
There even used to be an advert that went 'Cook, cook , cook, cookability, thats the beauty of gas' but electric caught up with gas.
Please check out one of my spec sheets :
C60GTX
If you look at the 2nd page you will see where it says 'Controls on Max for 15 mins or when boiling' and then 'Turn down to simmer'.
This was a test where you turned on full, waited up to 15 mins for the pan of water to boil and then turn the control down so the water didn't boil over.
Every gas & electric cooker was able to turn down immediately without a boil over meaning that both gas & electric were just as controllable.
As you can see this test was done 30 times over a period of 30 days.
The only time when they did boil over was when there was something wrong with the control.
People will still argue to death that gas is more controllable than electric but it is BS.
(No doubt there are some very cheap makes out there that aren't controllable)