no close NEVER!!!boa is ok but not so close to SHINee.20%.I think 더 많이 SNSD are 더 많이 close to Shinee.80% but i dont like SNSD excavate 샤이니 i like they song but not 더 많이 with Shinee.sorry!!!
i wouldn't say really close, but quite close.. she's closer to Super junior and SHINee is closer to SNSD, 에프엑스 and KARA. But there's a rumor saying minho started flirting with BoA. May be Minho likes her.. But SHINee seem to like BoA a lot since they always dance to her songs LOL