Good, better, best, never let it rest; until your good is better, and the better best.
When I used my favourite search engine to find out the origin of this quote, it was attributed to a gentleman named Tim Duncan.
Since he's (apparently) a pro basketball player and born in 1976-and I learnt this quote at school long before that date-I dug a little deeper.
St Jerome seems to be the main man.
It's so easy to become distracted and to be diverted, isn't it? I wanted to give credit where it was due, so St Jerome gets my tick of approval.
The first sentence contains a string of adjectives, and we could-if we'd been really naughty-have: bad, worse, worst.
You can make up your own rhyme for that one (that favourite search engine will give you words to rhyme with 'worst').
I love having all those things-literally-at my fingertips! So, if we extrapolate what I've written, you will note that my new, you-beaut website, isn't named correctly grammatically.
'Better' than what? I am excused, though, because Paul Whipp to whom I owe an enormous amount of gratitude, assured me that in techo-speak, 'better' will be picked up more easily in those pesky search engine thingos.
Am I forgiven? Comparatives: usually adjectives, can also be nouns If we add 'er' to the end of a word-you remember, that's a suffix-we sometimes come up with a comparative, think: tall, taller; small, smaller; windy, windier.
Of course, being English, this doesn't follow automatically.
If I am good at something, am I gooder? No.
I'd have to be bet at something to be better.
Lordy, Lordy, back to the drawing board...
The word comparative describes its meaning.
It's used when we compare one thing to another ('Compare the meerkat...
') so, using the examples above:

• I am tall, but my sister is taller than I (am).
  [Because we wouldn't say 'me am smaller than she is', would we now boys and girls?]
• My pony is small, but Jenny's pony is smaller.
  (We can quantify that, by adding 'much' in front of the 'smaller'.
  )
• It's very windy today; I hear those northwesters blowing through the trees.
  It will be windier tomorrow if the weather bureau forecasters are correct.
  

Superlatives: usually adjectives, can be nouns too A superlative is the ultimate, the pinnacle, the highest.
And there's a clue, add the suffix 'est' to the word and you might come up with a superlative.
Bestest? I don't think so.
(Hint: if you get stuck, you can add 'most' in front of the adjective you are using: most delicious, most exciting, most dangerous.
)

• My sister likes giraffes, the tallest of the animals.
  
• Jenny's pony is the smallest in the paddock.
  
• Tomorrow is forecast to be the windiest day of the week; no joy for the fishermen on Moreton Bay.
  (If the northwester's blowin', no point in goin'!)

Caution, a trap for young players: superlative can also be used as a noun, as in 'the number of superlatives used was ridiculous', and, of course, you can substitute 'comparatives' there too.
To close, how would (three) children at an English private school-known, just because it's England, as public schools-have felt when described as Smith Maximus, Smith Secundus and Smith Minimus? (My learned friend Rod Perry says the defining tags are 'ordinals'-I get the reason for that etymology-as opposed to 'numerals', and he provided me with the ordinals from one to ten.
Imagine having all those kids at one school!) Perhaps they didn't really mind the impersonal nature of the titles since it was acceptable at the time.
Thank heavens we have come on tad since then, although I did hear a rumour that Latin was to be reintroduced to schools across Australia.
Now what do you make of that? P.
S.
(which stands for post script-'to write after') the 'good' and 'bad' of these examples is known as the 'positive'.