Support. I never really use my xp kit but this seems cool. Also I'm mvp and about 6 months ago I won around 30'ish rounds without voting once so IT IS possible to earn levels like that.
Support, but it would be much more convenient if you would find whichever number of xp bottles that is and give us the number for each respective rank. I also disagree with the idea that getting levels through winning rounds would be painfully slow; a round only lasts 5 minutes, allowing 12 levels per hour, if you're good enough.
Support. But you're competing with all the block glitches and that one group of 5+ donors all camping.
Unless you live in a timezone opposite to the majority of MV's population like me, allowing you to get on when almost no people are on. :p