It's hard to choose but I will agre with norway2864 - Friday. Saturday also is a nice day of the week because then I can go everywhere I want and I can stay to the early hours of the next day because it will be Sunday and I can catch up with sleep.
Friday is the best day. You can look forward to the weekend. I always deny it though. I only accept that it's Friday when I'm on the train, heading home from school. I couldn't survive a Friday, knowing that it is Friday.
Saturday is my favorite day because the next day is sunday. When I come back from school/college then i don't have to take the tension of doing my homework within a day. I know that the whole sunday is left if i couldn't complete my homework on saturday.
My favourite day is wednesday for I have my sipritual meeting set for that date and I am free from all kinds of disturbance. I have written an article which is unique and easy for exchange the content online at softnwords.