Which book is better to use for the F3 course? and which online class is better to join?
Examination Patter for F3 is CBE. therefore it will be better for you if you could use BPP for the subject.
And i never prefer Online classes therefore i cant suggest anything on that matter.
I used both BPP and Kaplan. BPP is more detailed and wordy, whereas Kaplan is succinct and to the point. If you won't be able to put in much time for preparation, Kaplan is the way to go. Both books cover all the topics though.
I am not particularly fond of online classes. I self studied F1, F2 and F3 from scratch using both Kaplan and BPP books and did quite well in all the exams. So it is certainly achievable.
Hope this helps.
I would recommend BPP, I did it through their distant learning programs, The best thing I found about Bpp F3 course material is they start with basis and build upon it !
All I can say is you need teacher back up as there are mistakes in the booklets