A Matter of Style: Aliases or Not?
As stated earlier, the C# reserved words for built-in types are simply aliases for the corresponding underlying BCL types. There’s no semantic difference whatsoever, so you can use either one.
Sometimes people start long-winded discussions on what’s the preferred style. I deliberately don’t participate in such discussion, but instead have one rule of thumb: consistency. Mixing aliases and raw BCL type names can yield only more confusion. But, objectively, both have their merits:
The BCL type names clearly indicate the range of numeric types in terms of bit width, but in a decimal-centric world that doesn’t tell ...
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