As presently worded your Question asks, "Which MATLAB equation solver is more suitable?" Yet you have not shared the specifics of the ODE (system?) you want to solve.
The usual dictum is that a Question asking about how to perform a specific mathematical task (eg. solve this ODE) using software can be on-topic here. On the other hand Questions about the software per se (errors, performance, etc.) are considered off-topic.
A look at the Related Questions listed in the sidebar of your Question will help to illustrate the distinction.
Asking about the "best" of anything is not as cogent as asking what the criteria are for deciding between options. The reason Matlab and similar packages provide more than one ODE solver is because there is no single best algorithm. There is a long history of such algorithms and a discussion of all the shortcomings one might encounter would be too broad for a good treatment. Instead, consider a one semester course in numerical methods.
In the short term I would recommend revamping the Question to focus on a specific ODE you want to solve (and how to do it with Matlab).