I love both ILI's and SEI's and enjoy hanging out with them.
I don't think anyone would ever confuse me for an ILI, but at first interaction quite easily for SEI. Bottom line, I relate to SEI's more.
I love to be around SEI's a bit more, because of their friendliness, optimism and adorableness, you can't really go wrong with them
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But on the other hand I relate with ILI's for their biting sense of humour and general weird world view.
Romantically I'm much more attracted to ILI's though.
To sum up, IEI's are basically a perfect mixture of both