It depends on the college you apply to, the college you take the courses at, and what level of courses you take.
Note that many college courses cover material faster than high school AP courses. For example, college courses in calculus, statistics, psychology, etc. cover in a semester what high school AP courses in calculus AB, statistics, and psychology cover in a year.
The level of courses matters. If you are taking college courses while in high school because you want to take more advanced courses than the AP / college frosh level (e.g. multivariable calculus), then that looks more favorable than taking college frosh courses (e.g. calculus), or remedial college courses covering high school level material (e.g. precalculus math, remedial English composition).
A four year school is not necessarily more rigorous than a community college. In some cases, the community college may be more rigorous, if it aims to prepare students to transfer to the state flagship, while the four year school happens to be the least selective one in the state and designs its courses for weaker college students.