When you are saying that one is better than the other in comparison, would you say: "This is lot better." or "This is a lot better."?
How about: "This is much better." Is this also ok to use?
a lot is phrase used as adverb to say that something happens to a great degree or often: Things have changed a lot since I was a child. She likes you a lot..
A lot = much. So if something is a lot better, faster, easier etc, they are much better, faster, easier etc
Both phrases a lot better and much better are in common use.