If you look at similar threads on AB, you will find that this kind - ie. those that don't ask a specific question, just give rise to sarcasm, banter or just plain insults and tend to irritate people.
Perhaps you would like to ask a question now.....?
They are so obviously homework questions. Anyone with any wit would change the original question to say something like
"I've been wondering whether it is really possible to distinguish between better services or whether they are all the same. What do others think"
ha ha ha ha haaaaaaaaaaaaaaa, yeah because we've all got nothing better to do than do your homework for you to save you the bother... ''discuss with examples'' - are you having a laugh??
un-fackin- believable!