If you must run Windows XP as the host, and install the wallets in a VM, then  I suggest running GNU/Linux 64bit in a VM. Oracle Virtualbox still supports XP. Give the VM running Monero as much memory as possible. I believe one can run 64bit GNU/Linux in a VM with 32bit Windows XP as the host, using Virtualbox. https://forums.virtualbox.org/viewtopic.php?f=1&t=46904. One must however enable CPU virtualization support in the BIOS. If your hardware is fairly recent then this should be possible.

My experience is mostly the other way around running Microsoft Windows guests on a GNU/Linux host. In fact I still run XP, 2000 and even NT4 with this setup. The biggest concern I do have with a GNU/Linux guest on a Microsoft Windows host is key-logging malware on the host intercepting wallet passwords and / or private keys. Granted this may be safer than running Monero directly on Microsoft Windows but some of the risk still remains. For this reason I have to strongly advise against giving any Microsoft operating system access to XBT or XMR wallet passwords and / or private keys and would recommend the Windows guest on GNU/Linux host approach instead.