Xinyu Cai (China, Beijing) prefer positions after 5 moves

All years
5
2
314
2bw
+2 
=  
-  
?  
4
2
1
53
2bw
+1 
=  
-1 
?  
5
2
1
4
3
1bw
+  
=  
- 1
?  
2
15
43
1bw
+  
=  
-1 
?