I agree with James CH95. We really need to know more about your team.
1. What are your resources? This includes number of team members, engineering support, resources for having parts machined etc. These are [i][b][u]huge[u][i][b] factors in your design.
2. What strategy does your team feel will be most important in this game? You need to choose one that the majority of your team can support and successfully design a robot to complete.
3. There are significant advantages to a 'utility' robot for a rookie team with limited resources so don't throw that option out the window yet.
Let us know more and maybe we can be more helpful...
