1995 - 2000 SNES (1998-2002 GBC as secondary)
2003 - 2006 GC (2004-2006 GBA as secondary)
2006 - 2009 PS2 (short owning of an X360 in 2008)
2009 - Present PS3 (2008 - Present Wii as secondary)
But PC would bring them all to the ground in terms of use except maybe the PS2.