I think really it depend's
someone like ike haxton or jon andress have memory's like computers,
they remember almost every hand and they'l be like, this guy doesn't ever check a flush draw on the turn or he doesn't flat broadways pre flop etc.
which is a huge advantage against some players.
because they can get away from all their
hands
but then someone like ivey/neagranu who are unpredictable dont have like a computer memory but they are extremly good at applying pressure on players 3-bet 4-betting lags and intervening players trying to exploit the table.
so I think both are effective, if you can observe your table and get a strong a realisition of whats going on you can be a winning player at pretty high levels.
Multi tabling hi levels though is best suited to sicko's