I will go with Tottenham to win Crystal palace. Yes Tottenham hasn't really been a reliable said for most of the season, neither is Crystal palace. But Tottenham has been more consistent compared to Crystal palace, and if Tottenham is unable to win this game then they should forget about any hope for Top four finish. They have a very good coach who has brought a complete different pattern to Tottenham way of playing in the past, so winning this game won't be that difficult for them.
Honestly I don't see any reason how Crystal Palace would pull an upsets, it's either Tottenham will win or draw, so draw no bet is the safest option here. It's only luck that would make Crystal Palace to win, despite Tottenham recently has a bad result, but they're not that weak.
Newcastle United focused too much on Champions League and they actually created good impression there. They finally failed to go to a round of 16 and returned to Premier League with lot of negative effects. Their bad performances in Premier League are partially caused by their ambition to fight in Champions League. FA Cup is where Newcastle United can get a trophy and heal this failed season.
Looking at their recent poor result that struggle to beat Blackburn Rovers and there are many teams stronger than them, I see no chance they would win.