Jeep wrangler sahara and sport questions?

i am 15 turning 16 and im getting a jeep soon. my dad has a 2000 jeep wrangler sahara. he said he will give me his jeep but i want my own. what is the diffrence between the 2000 sahara and the 2000 sport? and which do you prefer? half doors,full doors,or no doors? i live in florida so it almost always hot.
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