The OP says 'for training', so I assume (always a dangerous thing, I know), that this a/c will then be sold on or leased to an FTO. If this is correct, then I'd say 'none of the above', as none of them are commonly used for training. I'd go with a C182RG or even a C172RG which is frequently used for commercial/instrument training. If there is an element of private flying, then again the 182RG or, of course, the 210, both of which are great a/c for personal transportation. Another option could be a Piper Lance.