For the larger LU, Oase over Palace. For some diversity (more non-Romies), you can try Palace.
Now the weather is warming up, Oase has a large outside garden area with a pool. Palace is in the city, smaller in scale, and doesn't have that.
Palace is easier to access. Also, Mainhattan is an alternative if looking for convenient destination as well. Unlike Palace, there is an outdoor area, but not a large as Oase.
Oase offers the 50 Euros entry before 4 pm special (All day Weds). Mainhattan also has early happy HR entry discounts (check the webpage for the hrs).
