Just stumbled which to use when I was writing something. "One thing to note" seems to be used much more often, but clarifications from experts would be helpful.
closed as primarily opinion-based by Edwin Ashworth, TimLymington, Chenmunka, Drew, Mr. Shiny and New 安宇 Aug 18 '15 at 21:14
Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.
The phrase "to be noted" is a passive construction. Passive construction is more common in English than in other languages. In technical documentation and user instructions, the passive voice is less specific and harder to understand especially for those people who do not read English as a first language.
Per The Global English Style Guide by John R. Kohl