Going off the stats, it has to be Portuguese
Portugese one.
The stats don't lie
Real Ronaldo
1994–1996 PSV 46 games, scoring 42
1996–1997 Barcelona 37 games, scoring 34
1997–2002 Inter Milan 68 games, scoring 49
2002–2007 Real Madrid 127 games, scoring 83
2007–2008 AC Milan 20 games, scoring 9
2009–2011 Corinthians 31 games, scoring 18
1994–2011 Brazil 98 games, scoring 62
C Ronaldo
2003–2009 Manchester United 196 games, scoring 84
2009– Real Madrid 149 games, scoring 163
2003– Portugal 109 games, scoring 47
The stats tell me both are goal machines. Analysing beyond the stats tells me that the real Ronaldo scored at will for any club in any competition against any opposition. He was also good enough to win the World Cup for his country, breaking Gerd Müller's goals record on the way.
C Ronaldo's domination is impressive, but it's not as impressive as his older namesake. If he dominates World Cup 2014, then he is arguably nearing the level of Ronaldo.
It's like the Messi vs Maradona debate. Maradona is still winning this by a margin.
I would want Ronaldo Luís Nazário de Lima for Everton every time.