psy270 summer vs non summer? which is easier to score in

Hi I was planning to take psy270, I have been told this is one of the most tough psych courses and therefore wanted to ask if I should do it in the summer or the regular school year? I need an 80+ since im a second year applying for the specialist.

Additionally, I am also thinking about taking psy280 with Dirk Bernhardt-Walther which is online asynchronous. Im hoping since it is entirely online, the tests and course will be easier to score in. Is that true or just a misconception?

Moreover, how would psy290 with Paul Whissell be? is he a good prof? would a summer course with him be easy and not tough to score in?

any other psych courses which should be taken in the summer rather than the normal school year?

Sorry if these questions seem dumb, I am new to all this and would appreciate any guidance possible. As I mentioned before im a second year applying for the specialist and therefore am so focused on marks.

Any advice or tips are really appreciated!!

Please help!!