If i were asked, i would say python
You wanna do software dev i presume?
Sql is needed majorly for database... from the construct of development database comes later in line after hookin up your program, but sql this could also be first if you wanna be a database admin
You would want to know html if you were gonna do web design which you would still learn css and a web dev lan php or java or python etc
In my opinion python is a winner in this(from the 3 languages you gave),
Learning_Path:- you learn basics of codin in python then move to sql for databases in your program then whenever you wanna move to the cloud you could still use python instead of learning another web lang then spice it up with html/css
Oh well thats my opinin.......lol we never even asked the ultimate question from you.....
WHAT DO YOU WANNA DO as in what do you wanna major in, what do you fantasize codin about
cause only with that we can optimally choose a good language for you cause there is no best but there are always preference in an aspect of what you wanna build.......
One would think you're confused cause you gave 3 versatile options
python - programming lang
sql - query lang
html - markup lang for web design