I have never been to a store that had the leica Ultravids but I recently bought a pair of EL's which I feel are superior to the trinovids and the swaro slc's. I compared everything out there (except for the ultravids) and the EL's were #1. The slc's and trinovids were neck and neck. I imagine that the ultravids and el's are gonna be so close that its gonna boil down to personal preference. Don't forget to research the warranties and how well each company honors them. And lastly, take them both outside and compare, compare, compare. Goodluck. Fatrooster.