This is amazing. Juan Osborne took the time to go through every script (season 1-5) on Lostpedia to find out how many words each character said (Jack - 28,591; Locke - 22,670) and how frequently they used certain words. Like with Wordle, the bigger the word is, the more frequently it was used.
See the full-sized version of Jack and Locke and a general image of the words said by Hurley, Kate, Desmond, Juliet, Sawyer, Ben and Sayid here. Bet you can guess without looking what the biggest word in Hurley's group is.