Every write-in will be challenged in court if it's not clearly spelled LISA MURKOWSKI. I expect we'll be waiting on this one till the end of the month at least. I imagine Miller will be a real jackass about this and won't go down without a big fight.
I don't know what the law on this is in Alaska, but when Shelley Sekula-Gibbs had to run a write-in campaign for Congress in TX-22, a bipartisan election commission accepted 28 pages of spellings of Sekula-Gibbs's name. Not 28 spellings, 28 PAGES of spellings. Generally as long as voter intent can be discerned it will be counted.