To mimic dbz, it would have to be one person to each class mode, pl catchup off and no lag. Plenty of people balance out melee and beams as they would in dbz, and an equal amount dont. Plus, people don't think like the characters on the show, like someone would watch a guy charge up a kamehameha and just stand there pretending like its comming too fast. If your on a server and you like playing with the same few people for 1-2 hours, a beam fest usually is inevitable and adter that they leave, so melee DOES get boring.
On the topic of spamming, both melee spamming and beam spamming are annoying. It's jsut melee spamming get old at a slower rate than beams. The high-speed part of the game is from melee, and the skill level of a player is based on melee, like it or not, so repetitive melee is needed to get better.
Beaming gets every boring after a period of time if there is not a variety of blast, becuz I someitmes go on the "BEAM ONLY, STAY ON YOUR SIDE" servers and its great eye candy for awhile, but it's really PL based, so skill has a little need for this type. So IMO, beam spamming is worst than melee spamming.
But a lot of people only go people "spammers" wehn they can't fight back :]