In short and IME having lagered in keg, bulk and bottles I personally have noticed any discernable difference. The only thing is if you elect to bottle you will need to begin lagering after they fully carbonate.
Also, for a comp, you would want the beer to be nice and clear, if your beers aren't poured well and sediment in the bottle clouds up the pour you might lose points-maybe an actual judge could chime in on that?
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