I don't like predictions etc. Joanna is heavy favourite, but people have to understand:
1. Joanna is much stronger than Rose, physically,she is also larger girl. Rose fought larger girl only once in his career: it was during TUF - Calderwood and Calderwood till this day is not really good grappler;
2. Saying Karolina is better in clinch than Joanna is blasphemy, rewatch their fight, Joanna was ragdolling KK in clinch, basicly destroying her in every aspect of game.
3. Joanna faced way better strikers not only in mma, but also before her career in mma.
4. Valentina Shevchenko can't replicate style of Joanna,she's different style fighter (Joanna is dutch stylist, Valentina more traditional) so I guess she just helped Rose with clinch etc., but still Joanna is stronger girl and more experienced. These fights between JJ and Shev from 2006-2008 are basicly memes at this point. Val never exeperienced JJ as pro after 2 years of training under Hoost.