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When comparing Visual Basic vs ATS, the Slant community recommends ATS for most people. In the question“What are the best (productivity-enhancing, well-designed, and concise, rather than just popular or time-tested) programming languages?” ATS is ranked 49th while Visual Basic is ranked 74th. The most important reason people chose ATS is:
ATS has a theorem-proving type system powerful enough to prove that its functions meet their specifications. This happens at compile time with no performance impact at runtime. This can be used to prove that an ATS program doesn't have bugs commonly found in C++ programs, like "this function never leaks memory" or "this program never attempts to divide by zero" or "this buffer never overflows" or to verify pointer arithmetic, etc.
Question Ranking
Pros
Pro Very simple and efficient language (in terms of number of lines of code)
Pro Easy to learn
Pro Capable language
Compiling to the same intermediate language as C# and compiling against the same .NET libraries, the differences between C# and VB are largely syntactic. Most VB features even have a 1:1 correspondence with C#.
Pro Huge community
Being Microsoft's introductory language, visual basic has a strong and large community.
Pro English-like syntax
Pro Flexible, won't get in the way of a beginner
A beginner developer can worry about the code logic first, and then learn the language. Visual Basic lets you do basically anything if you really want, while still having the power to be a fully statically-typed and object oriented.
Pro Sibling to C#
If you don't want to start with C# because of its high learning floor, you can start with VB. It is dead easy to switch between the two.
Pro Easy to deal with Win32API
Using platform invoke, it's very easy to use the win32 api in vb.net. Neat and clean syntax. Not a mess like c# (meaning those "{}"s).
Pro Built-in formal specification
ATS has a theorem-proving type system powerful enough to prove that its functions meet their specifications. This happens at compile time with no performance impact at runtime. This can be used to prove that an ATS program doesn't have bugs commonly found in C++ programs, like "this function never leaks memory" or "this program never attempts to divide by zero" or "this buffer never overflows" or to verify pointer arithmetic, etc.
Pro Free and open-source compiler
The compiler (ATS/Postiats) is GPLv3.
Pro Functional programming
The syntax is ML-like with the usual functional language features like pattern matching and tail-call optimization.
Pro High-performance systems language
ATS works as a low-level systems language. ATS programs have performance and footprint comparable to programs written in C/C++.
Pro Good module system
Similar to Modula-3. This makes ATS a viable choice even for large-scale projects.
Pro Safe concurrency
ATS can prove its concurrent programs have no deadlocks or race conditions.
Cons
Con Almost as bad as Python, but less used
Con Bad reputation
Being a visual basic programmer, you're unlikely to be taken seriously by other programmers. According to the 2015 Stack Overflow survey, it was voted the second most dreaded language among developers.
Con Tends to get clunky due to prebuilt assets
Con No Windows version
But it does run on Cygwin.
