The Denmark defender admits it was a difficult choice.
In a Q&A session on Tuesday, Sviatchenko told Celtic's official Twitter feed "it's so difficult to say", before adding: "but I would have to go for Christian Eriksen".
ES: It's so difficult to say but I would have to go for Christian Eriksen. https://t.co/AokfUb4mpp— Celtic Football Club (@celticfc) 17 March 2016
The two Denmark internationals made their under-18 debuts in April 2009 and have been teammates at various other age groups up to senior level, where Sviatchenko made his long-awaited debut last year.
The centre-back then followed Eriksen to the UK, joining the Bhoys from FC Midtjylland in January, and has got off to a solid start at Parkhead - losing just one of his first six league matches.
Sviatchenko has some way to go before he can reach Eriksen's stature within the game, however, with the midfielder a three-time Danish player of the year.
Eriksen, a 2013 signing from Ajax, has helped the Lilywhites to second in the standings with eight games remaining.