I like Evelyn's quiet confidence and she is probably the least insecure HM - takes any criticism well and doesn't feel the need to justify herself. She's also very loyal to Laura but I can imagine it's not reciprocated to the same degree.
Laura has some nice qualities but I can imagine she would throw Evelyn under the bus if necessary. She came across as quite selfish (like Emma) when she wanted her 'lover' to stay another night, and she seems money hungry by the way she couldn't stand that Jason had got the 20k and, equally, couldn't comprehend why someone would give money to someone else. A general lack of empathy.
Although the fact that, nowadays, to go on BB you are more likely to be the type of character who would do anything for money, morals aside, it's no wonder most of them can't comprehend that!