Which luxury brand makes the most durable bags ?

After years of buying cheap bags I have realized buying one expensive good quality bag is more worth the money and now my husband has more disposable income to afford it too... so which luxury brand has the most durable bags? I have seen people say either LV or gucci ... I have also heard of strathberry and mulberry ... some also say specific types of leather bags of the brand also factor into consideration on lasting longer.. any advice ?my budget is 2k.