Love Triangles... Oh my

From fannish5: List your five favorite love triangles.

1. Jack/Nine/Rose (Doctor Who)
   
2. Jack/John/Ianto (Torchwood)
   
3. Jack/Ten/Martha (with a tip of the hat to Jack/Martha/Tom, but we hardly know Tom, which I think is a pity)(Doctor Who)
   
4. Alexander/Bagoas/Hephaesteon in the Mary Renault novel The Persian Boy
   
5. Eugene Wrayburn/Lizzie Hexham/Bradley Headstone in Our Mutual Friend by Charles Dickens

And if I could have a #6 on the list, it would be Jack/Ianto/Gwen in Torchwood.