Besides the hours, obviously the 100 hour course would cover more ground. In my opinion.
Have never heard of
Linuaedge, even though I've been in the ESL industry for quite some years now. There site only went up in March of this year according to a quick check I did on their domain name. So, personally I would go with this mob as no-one has heard of them. Go with a school with more of a reputation.
i-to-i have one of the best reputations around, and I believe you can't go wrong with them.