Saskia is awesome, when I played the first time I had sided with Roche and then I kept having to support that King even though I wanted to support Saskia, it was pretty annoying. Then I read that if I had sided wit Iorveth I would get to support Saskia, so even though I was most of the way through Chapter 2 at that point, I stopped and went back and sided with Iorveth instead, and then Chapter 2 was SO much nicer, not only to get to support Saskia but also most of the people you meet in Chapter 2 are better folks if you're supporting Saskia, I guess its only natural that the nicer folks would be supporting the better person at the top :) .
I didn't get a conversation with Saskia after the Chapter 3 fight, I assume that's only for people who saved Philippa and broke her spell instead of saving Triss? That was the toughest decision in the game for me, because while I'd rather save Triss, Philippa was right there and its hard to justify not helping her out of the cell when you're standing right there in front of it. Ultimately I went with Triss because I really like Triss and I want to do whatever I can to save her at every possible opportunity, but also I didn't really want Philippa's spell broken, I'd much rather simply reverse it, give Saskia the power over Phillippa instead of the other way around like it is right now. but keep the bond between them.
Some folks seem to not like Philippa, I don't really understand that, I liked her right away, and after everything that happened to her I felt sorry for her. Her girlfriend turned out to be an enemy spy, she gets captured and thrown into a dungeon by some horrible guy who was upset that she was the one person he could never control, the guy then cuts her eyes out or something, I mean my gracious this woman saved Saskia's life, helped her defeat the bad King and his army and bring freedom to the land, and yet this is how she ends up? She deserved so much better, and Saskia is all she has left. Granted, she shouldn't have used Saskia like she did, I guess pretty much everybody in the game has to have a negative side, and hers clearly is a desire for power. But you can tell from the conversation in the jail cell how much she loves Saskia, which of course is totally to be expected considering how awesome Saskia is, it's the same with Iorveth, you can tell how much Philippa and Iorveth hate each other because they're each other's main rival for Saskia.
The point Philippa makes about how she and Saskia would be unstoppable together is so true, if they stay together they could totally defend their country and their newly won freedom from any of those evil folks in the other lands who might attack at any point in the future. Of course if Geralt could end up with Saskia that would be even better, but since he can't I think Phillippa is defintiely the next best choice, so I'd like to just modify her spell so that Philippa's will bends to Saskia's instead of the other way around, thus keeping Philippa's more negative qualities in check, but keep them being in love. That would be the best possible result both for the two of them and for their country, ensuring that Saskia would be a great Queen not just for years but for decades, maybe centuries (who knows how long she could live? A mighty long time I'd think!) to come.